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
A crate is resting on a ramp that is inclined at angle theta above the horizontal. as theta increases the crate remains at rest untill theta reaches 19 degrees. then the crate begins to slide down the slope. the coefficient of kinetic friction between the crate and ramp surface is 0.265. Find the acceleration of the moving cra
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 mas
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.
Mass m1 (34.50 kg) is on a horizontal surface, connected to mass m2 (5.90 kg) by a light string. The pulley has negligible mass and no friction. A force of 220.9 N acts on m1 at an angle of 34.50 degrees. The coefficient of kinetic friction between m1 and surface is .233. Determine the upward acceleration of m2. I have at
A 14 kg monkey climbs up a massless rope that runs over a frictionless tree limb and back down to a 27 kg package on the ground. What is the magnitude of the last acceleration the monekey must have if it is to lift the package off the the ground?
A 3.5 kg block is put on top of a 6 kg block. To cause the top block to slip on the bottom one, while the bottom one is held fixed, a horizontal force of at least 15.4 N must be applied to the top block. The assembly of blocks is now placed on a horizontal frictionless table. Please explain how to: 1. Find the magnitude
A window washer pulls herself upward using the bucket-pulley apparatus shown in Fig. 4-40. The mass of the person plus the bucket is 68 kg. Figure 4-40. (a) How hard must she pull downward to raise herself slowly at constant speed? (N) (b) If she increases this force by 10 percent, what will her acceleration be (upward
A jet aircraft is climbing at an angle of 43° above the horizontal and is also accelerating at 4.9 m/s2. What is the total force that the cockpit seat exerts on the 65 kg pilot? Magnitude (N) / Direction (° above the direction of motion of the plane)
Five forces pull on a 2.3 kg box... Please see the attached file for the fully formatted problem.
A skier is accelerating down a 30 degree hill at 3.80 m/s^2. Draw a convenient XY coordinate system, then determine: a) What is the vertical component of her acceleration? b) How long does it take her to reach the bottom, assuming she starts from rest and accelerates at a constant rate, if her elevation change is 355m?
A bullet traveling horizontally at a speed of 350 m/s hits a board perpendicular to the surface, passes through and emerges on the other side at a speed of 210 m/s. The board is 0.04 m thick, how long does the bullet take to pass through it?
A car accelerates from rest to a speed of 50.0m/s over a distance of 402.0 m, how long does this take?
Velocity is related to acceleration and distance by the following expression V^2 = 2ax^p. What is the value of p that makes this dimensionally consistent.
A 300 kg polar bear walks onto a .42 m thick chunk of ice, while it is floating in the arctic ocean. What is the area of the sheet if it sinks just level with the surface while supporting the bear?
At time t = 0 s a hockey puck is moving with a velocity of 18 m/s. It is decelerating at a rate of 0.95 m/s^2 (squared). What displacement will the puck have in 1.5 s Answer with number of meters rounded to the nearest whole number. Thanks
Please give detailed step by step easy to understand answers for the attached problems. If an equation is used please give it first, then completely solve leaving no steps out no matter how minor. Thanks!
1) Please answer T or F and tell why true or false. a) A body can be accelerating even when it is not moving. b) The velocity of an accelerated body changes with time. c) Motion and acceleration are not the same quantity d) The words motion and acceleration can be used interchangeably. e) The acceleration of a body with zer
A large block P executes horizontal simple harmonic motion as it slides across a frictionless surface with a frequency f. Block B rests on top of block P and the static coefficient of static friction between the two is mu_s. What maximum amplitude of oscillation can the system have if the upper block is not to slip? I am no
Please see attached for the figure. (a) A skier is accelerating down a 30.0 degree hill at 4.30 m/s^2. What is the vertical component of her acceleration? (m/s^2 (downward)) (b) How long will it take her to reach the bottom of the hill, assuming she starts from rest and accelerates uniformly, if the elevation change is 330
A car traveling at 95 km/h strikes a tree. The front end of the car compresses and the driver comes to rest after traveling 0.77 m. What was the average acceleration of the driver during the collision? Express the answer in terms of "g's," where 1.00g = 9.80 m/s2.