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    Velocity

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    Car on an Inclined Plane

    A car is on an inclined plane (shoulder of the road) at angle theta. The car has mass of 1.6Mg and center of mass at G. G is located 2.5 ft vertical from the inclined plane (shoulder of the road). If the coefficient of static friction between shoulder of road and tires is us=0.4, determine greatest slope, theta, the incline can

    Three-Block Inelastic Collision

    A block of mass m1 moving with speed v1 undergoes a completely inelastic collision with a stationary block of mass m2. The blocks then move, stuck together, at speed v2. After a short time, the two-block system collides inelastically with a third block, of mass m3, which is initially stationary. The three blocks then move, stu

    Velocity and maximum height

    If a ball is thrown vertically upward from the roof of a 48 foot building with a velocity of 64ft/sec, its height after t seconds is s(t)=48 + 64t -16t^2. What is the maximum height the ball reaches? What is the velocity of the ball when it hits the ground (height 0)?

    Question about Shooting over a Hill

    See attached A. Find the highest point in the trajectory, . Express the highest point in terms of the magnitude of the acceleration due to gravity , the initial velocity , and the angle . B. What is the range of the projectile, ? Express the range in terms of , , and . Consider your advice to an artiller

    Energy Problem: Find the Velocity

    A small cube of mass m slides down a circular path of radius R cut into a large block of mass M. M rests on a table, and both blocks move without friction. The blocks are initially at rest, and m starts from the top of the path. Find the velocity v of the cube as it leaves the block.

    Scales and Chains

    A chain of mass M and length l is suspended vertically with its lowest end touching a scale. The chain is released and falls onto the scale. What is the reading of the scale when a length of chain x has fallen?

    Circualr Motion

    The period of a stone swung in a horizontal circle on a 2.00-m radius is 1.00 s. a. What is its angular velocity in rad/s? b. What is its linear speed in m/s? c. What is its radial acceleration in m/s^2.

    Velocity - Addition Formula

    As seen from earth (rest frame S) two rockets A and B are approaching in opposite directions...See Attachment

    Ballistic Pendulum measures projectile speeds

    A ballistic pendulum is a great device for measuring projectile speeds that are relatively large. You launch a small mass m into a large mass M, and it swings up a height h where the two masses stick together. Show that the velocity of the projectile (mass m) is given by v= (m+M)/m) times the square root of 2gh

    For a car traveling at velocity v around a curve of radius

    For a car traveling at velocity v around a curve of radius r, there is a particular angle 0 (theta) that the curve ought be banked so that the car is least likely to slide sideways. Show that this special angle is given by O=tan-1[(VxV0/(rg)]

    Momentum, rocket ascending

    A rocket ascends from rest in a uniform gravitational field by ejecting exhaust with constant speed " u " . Assume that the rate at witch mass is expelled is given by dm/dt = Cm , where m is the instataneous mass of the rocket and C is a constant, and that the rocket is retarded by air resistance with a force mBv, wher B is a co

    Momentum, locomotive

    A sand-spraying locomotive sprays sand horizontally into a freight car, (locomotive at the left and car at the right). The locomotive and freight car are not attached. The engineer in the locomotive maintains his speed so that the distance to the freight car stays constant. The sand is transferred at a rate dm/dt = 10Kg/s with

    Car's magnitude of change in velocity, average acceleration

    Please see attached study guide. Please give detailed step by step answers as simple as possible for my understanding please. 10 Multiple choice: Car's magnitude of change in velocity, average acceleration, circular path at constant speed, net force.

    Block constrained to move inside a ring

    A block of mass m slides on a frictionless table. It is constrained to move inside a ring of radius l which is fixed to the table. at t=0, the block is moving along the inside of the table (i.e., in the tangential direction) with velocity (v)O (v initial) , the coefficient of friction between the block and the ring is "u" 1)

    Momentum - two blocks connected by a spring

    A system is composed of two blocks of mass M1 and mass M2 connected by a massless spring with spring constant k. The blocks slide on a frictionless plane. The unstretched length of the spring is L. Initially M2 is held so that the spring is compressed to L/2 and M1 is forced against a stop. M2 is released at t=0. Find the mot

    Physics Problems (Displacement Vectors; Velocities etc.)

    I would like you to show me all of your work/calculations and the correct answer to each problem. 13. A ball rolls at a constant velocity of 1.50 m / s at an angle of 45 degrees below the + x-axis in the fourth quadrant. If we take the ball to be at the origin at t = 0, what are its coordinates (x, y) 1.65 s later? Answers

    Vectors - Force & Velocity

    Please see the attached file for full problem description with diagrams. 1) A truck is stuck in the mud. One winch can pull on a cable with 2500 pounds of force and a second winch can pull with 1500 pounds of force. If the angle between the cables is 25 degrees, what is the result force on the truck? Show method used.

    Vectors

    Please give step by step answers with solutions details please. I learn by seeing things done. Thank you! Their are 3 attachments.

    Velocity & Acceleration Questions

    Please see the attached file for full problem description. Please give step by step answers with solutions. I am learning so much by using your service just by seeing these done. Thanks!

    Velocity and Acceleration - Position versus Time

    Please give the solution and a step-by-step way to figure the answers out please. Learning is important. Use the data for all these questions on position versus time. The graph points are at 8 meters t=0 seconds. -4 meters at 1 second, -8 meters at 2 seconds, -4 meters at 3 seconds, 0 meters at 4 seconds and 28 meters at 5

    Evaluating Velocity and Acceleration

    Hi, please give the step by step solutions so I can see how you got the answers and understand it. The graph on the page is a velocity versus time graph. The time is in seconds. The graph has points at (0,20),(5,40),(10,60),(15,80),(15,60),(15,40),(15,20),(15,0),(15,-20),(15,-40),(20,-40), and then the next point is approxima

    Average velocity

    Please give step by step answers please. 1) The position versus time for a certain object moving along the x-axis is shown. The object's initial position is -3meters. The graph is position in meters for the y axis and the x axis is time in seonds. Point one on the grpah for 0 sec. is at (0,-3), 1 sec at (1,3), 2 sec (2

    Average Velocity for Certain Objects Moving

    1) The position versus time for a certain object moving along the x axis is shown. The objects initial position is -3m. The graph points since I cannot draw it start at (0,-3),(2,9),(3,6),(4,4),(5,4),(6,0),(7,-4) and (9,0). a) Find the average velocity in the time interval 0s to 2s in m/s. b) Find the average velocit

    Average Velocity and Distance

    Questions: 1) Two ants race across a table that is 72.5 cm long. One travels at 4.02 cm/s and the other at 2.7 cm/s. When the first one crosses the finish line, how far behind is the second one? Answer in units of cm. 2) The position of a car coasting down a hill was observed at various times and the results are summariz

    Pressure/Bernoulli's equation

    Hi. Can someone please walk me through how to do the following problem? On a vacation flight, you look out the window of the jet and wonder about the forces exerted on the window. Suppose the air outside of the window moves with a speed of approximately 150 m/s shortly after take-off, and that the air inside the plane is at a

    (3.10) angular accelleration of this wheel? Find tension in the string?

    At t=0, a wheel rotating about a fixed axis at a constant angular acceleration has an angular velocity of 2 rad/s. Two seconds later it has turned 5 complete revolutions. What is the angular acceleration of this wheel? ============================================== Answer: a) 17 rad/s^2 b) 14 rad/s^2 c) 20 rad/s^2 d) 23 ra

    Proportional Velocity Word Problem

    All work must be shown step by step, any answers given without proper justification will not be accepted. Keep track of units and use proper notation. An object is dropped from a tall building, If the air resistance is proportional to the square of the velocity, then (dv/dt)=-32(ft/sec^2)+kv^2 where k is a constant. Show th