The first question involves an atwood machine, the second involves two different rods attached to hinges falling/rotating to the ground. See the jpeg for exact questions. The text is provided below simply for the benefit of the search engine: Atwood Machine A frictionless pulley with mass Mb is attached to the ceiling,
Find the mass and the radii of the planets Mercury, Neptune and Pluto, masses in kilograms and radii in meters. With that data calculate the gravitational acceleration on each of the planets in kilograms and meters and show the gravitational acceleration in meters per square second. With the gravitational acceleration from abo
10. if the acceleration vector of an object is in opposite direction as the velocity vector, then: a. the object is moving in the negative x-direction b. speeding up c. slowing down d. turning e. at rest 12. a ball thrown horizontally from a point 24m above ground strikes the ground after traveling horizontally a
1) Luigi launches a stone vertically upward from the top of a cliff. The height of the stone above the base of the cliff is appoximated by the model h=65+10t-5t^2 where t is time in second and h is height in metres a) how high is the stone above the base of the cliff after 3 seconds? h = 65 + 10t - 5t^2 h = 65 +10(3) -
1) In the drawing the rope and the pulleys are massless and there is no friction Find a) the tension in the rope, and b) the acceleration of the 12kg block. (The 12 kg block is on the table connected to a 3 kg block which is hanging off the table by a pulley) 2) A chain consisting of five links, each of mass 0.10k
Uniform circular motion and simple harmonic motion: find the maximum acceleration of the pistons and their maximum speed
The pistons in an internal combustion engine undergo a motion that is approximately simple harmonic. If the amplitude of motion is 3.5 cm, and the engine runs at 1700 rev/min, find (a) the maximum acceleration of the pistons and(b) their maximum speed.
A peg on a turntable moves with a constant linear speed of 0.67 m/s in a circle of radius 0.45 m. The peg casts a shadow on a wall. Find the following quantities related to the motion of the shadow: (a) the period, (b) the amplitude, (c) the maximum speed, and (d) the maximum magnitude of the acceleration.
An ant with mass is standing peacefully on top of a horizontal, stretched rope. The rope has mass per unit length and is under tension . Without warning, Throckmorton starts a sinusoidal transverse wave of wavelength propagating along the rope. The motion of the rope is in a vertical plane. What minimum wave amplitude will
Question: An ice skater rotates 2 revolutions per second. She puts her feet on the ground to generate a friction force so that she stops rotating in 20 sec. What is the angular acceleration in rad/s^2. How many rotations did the ice skater make before stopping?
A pendulum of length 2 meters is taken to the moon. if this pendulum makes 10 oscillations in 32.0 seconds, what is the value of gravitational acceleration on this moon? a. 3.86 m/s^2 b. 2.54 m/s^2 c. 7.71 m/s^2 d. 9.86 m/s^2
A centrifuge rotor is accelerated from rest to 20,000 rpm in 5.0 min: (a) What is the current angular speed (omega) in rad/sec? (b) What is the angular acceleration (alpha)rad/sec^2? (c) If the centrifuge is modeled as a cylinder of radius 0.10 m and mass 2.0 kg, what torque is applied to make it spin?
An ultracentrifuge operates at a speed of 5.00x10^6 rpm. It contains test tubes filled with viruses. (a) what is the centripetal acceleration on a virus at a radial distance of 4.00 cm from the centrifuge's axis of rotation? (b) How does this acceleration compare with g, the acceleration due to gravity?
The Moon revolves arond the earth in 27.3 days in a nearly circular orbit with a radius of 3.8 x 10^5 km. Assuming that the Moon's orbital motion is a uniform circular motion, what is the Moon acceleration as it "falls" toward the earth?
A horizontal force of 100 N is applied to a 50.0 kg box; the box slides on a level floor and is opposed by frictional force of 20 N. Show the algebraic steps a) What is the acceleration of the box? b) How long does it take to move 5.0 meters? c) What is its speed at this point (5.0 meters)?
A 30.0 Newton net horizontal force is applied to a 4.5 kg mass. What is the acceleration? How much time does it take to move 10.0 meters, neglect friction?
Question: If the net force on an object is zero,the object must be_________?
The speed of a 4Kg object is given by v=(2t)m/s,where t is in seconds. At what rate is the resultant force on this object doing work at t=1 second?
A 9 kg hanging weight is connected to a string over a pulley to a 5Kg block that is sliding on a flat table. If the coefficient of kinetic friction is 0.15, find the tension in the string.
A person stands on the edge of a cliff and throws a pebble of mass 0.02kg vertically upwards with speed 10m/s. At the instant it is released, the pebble is 50m above sea level. On its return, the thrower does not catch the pebble, which continues past and falls into the sea... (i) Modelling the pebble at a particle and ignoring
Attached are physics questions relating to velocity, acceleration, force etc. Example: A 32.9kg boy and a 59.0kg girl are on the surface of a frozen lake, 13.5m apart. Using a rope, the boy exerts a horizontal 4.15N force on the girl, pulling her toward him. Calculate the magnitude of the boy's acceleration.
A BOX IS SLIDING UP AN INCLINE THAT MAKES AN ANGLE OF 16 DEGREES W/ RESPECT TO THE HORIZONTAL. THE COEFFECEINT OF KINETIC FRICTION BETWEEN THE BOX AND THE INCLINE IS 0.18. THE INITIAL SPEED OF THE BOX AT THE BOTTOM OF THE INCLINE IS 3.0 M/S. HOW FAR DOES THE BOX TRAVEL UP THE INCLINE BEFORE COMING TO REST?
A 3.8KG BOX IS SLIDING ACROSS THE HORIZONTAL FLOOR OF AN ELEVATOR. THE COEFFICIENT OF KINETIC FRICTION BETWEEN THE BOX AND THE FLOOR IS 0.470. DETERMINE THE KINETIC FRICTIONAL FORCE THAT ACTS ON THE BOX FOR EACH CASE. THE ELEVATOR IS STATIONARY THE ELEVATOR ACCELERATES UPWARDS AT 2.0 M/S2 THE ELEVATOR ACCELERATES DOWNWARD A
Two masses of 3.5 kg each, connected by a string, slide down a ramp making an angle of 34 deg. with the horizontal. The coefficient of kinetic friction between m1 and the ramp is .33. The coefficient of kinetic friction between m2 and the ramp is .18. I know my acceleration is 3.41 m/s^2. How do I determine the tension of
A slender rod of mass Mr has a disk of mass Mo fastened to it at its end. It is pinned at 0 - a "frictionless" pin. The circular frequency in rad/s of the system for small oscillations is what? *Please see attachment for diagram, figures and multiple choice answers; please show your work.
See attached diagram. A van accelerates down a hill going from rest to 32.8 m/s in 5.49 s. During the acceleration, a toy (m=0.115 kg) hangs by a string from the van's ceiling. The acceleration is such that the string remains perpendicular to the ceiling. How do you find the tension of the string?
A person stands on a bathroom scale in a motionless elevator. When the elevator begins to move, the scale briefly reads only 0.790 of the person's regular weight. 1) Calculate the acceleration of the elevator 2) Find the direction of the acceleration Positive y-axis points UP.
Please see the attachment for the diagrams. Explain how to breakdown the problems. 12. A 2.6 kg mass, m2, on a 33.6 degree incline is connected to a 4.2 kg mass, m1, on a horizontal surface. The surfaces and the pulley are frictionless. If F = 31.9 N, what is the magnitude of the tension in the connecting cord? 13. Two ma
Please see the attachment for the diagrams. 13. Now two forces are applied to the cart with two different spring scales as shown below. The spring scale Fa still reads 10.5 N. The cart now moves toward the right with an acceleration toward the right of 2.50 m/s^2. What does spring scale Fb read? Show your calculations, and
Could you please provide a force vs. time graph for the following: a) a car moves away from the origin with constant velocity b) car moves tward the orgin with constant velocity c) moves away from origin is a steady decreasing velocity d) moves away from the origin, speeds up, then slows down e) toward to ori
A passenger is pulling on the strap of a 17.8 kg suitcase with a force of 68.9 N. The strap makes an angle of 35.7 degrees above the horizontal. A 38.6 N friction force opposes the motion of the suitcase. Calculate the acceleration of the suitcase.