A horizontal tension force pulls to the right on block A. Block A slides to the right on a horizontal surface that is not frictionless. Block B is stacked on top of block A and the two blocks move together as a unit (block B does not slide on top of block A). Block A is 6 kg and block B is 2 kg. The tension force is increased so that the blocks continue sliding to the right but they are now speeding up. Which direction is block B? a) to the left b) to the right c) block A exerts no horizontal force on block B d) the rate at which the blocks are speeding up is needed to determine e) the direction of the horizontal force depends on the speed at which the blocks slide B horizontal force that block A exerts on

A horizontal tension force pulls to the right on block A. Block A slides to the right on a horizontal surface that is not frictionless. Block B is stacked on top of block A and the two blocks move together as a unit (block B does not slide on top of block A). Block A is 6 kg and block B is 2 kg. The tension force is increased so that the blocks continue sliding to the right but they are now speeding up. Which direction is block B? a) to the left b) to the right c) block A exerts no horizontal force on block B d) the rate at which the blocks are speeding up is needed to determine e) the direction of the horizontal force depends on the speed at which the blocks slide B horizontal force that block A exerts on

Physics for Scientists and Engineers: Foundations and Connections

1st Edition

ISBN:9781133939146

Author:Katz, Debora M.

Publisher:Katz, Debora M.

Chapter5: Newton's Laws Of Motion

Section: Chapter Questions

Problem 47PQ: A block with mass m1 hangs from a rope that is extended over an ideal pulley and attached to a...

See similar textbooks

Similar questions

A block with mass m1 hangs from a rope that is extended over an ideal pulley and attached to a second block with mass m2 that sits on a ledge. The second block is also connected to a third block with mass m3 by a second rope that hangs over a second ideal pulley as shown in Figure P5.47. If the friction between the ledge and the second block is negligible, m1 = 3.00 kg, m2 = 5.00 kg, and m3 = 8.00 kg, find the magnitude of the tension in each rope and the acceleration of each block. FIGURE P5.47
A clever coyote uses rocket powered skates to try to catch a roadrunner. The mass of the coyote is 38.1 kg. If the coyote starts from rest, and accelerates to a final speed of 26 m/s in a distance of 2.4 m, how much thrust force did the rockets excert to get him to his final speed? Assume this thrust is constant over the 2.4 m.
A car of mass 1.2 103 kg is traveling east at a speed of 24 m/s along a horizontal roadway. When its brakes are applied, the car stops in 5.3 s. What is the average horizontal force exerted on the car while it is braking?
Carol wants to move her 32 kg sofa to a different room in the house. She places “sofa sliders,” slippery disks with μk = 0.080, under the feet of the sofa. She then pushes the sofa at a steady 0.40 m/s across the floor. How much force does she apply to the sofa?
Two students are pushing crates across a frictionless floor. The crates are initially at rest. Bing applies a horizontal force of 13 N to his crate. Bob, who is taller than Bing, pushes on his crate at an angle of 53 degrees below the horizontal, also with a force of 13 N. Find the ratio of the masses of the two crates if Bing's crate is moving at twice the speed of Bob's crate after they have traveled a distance of 23.5 m across the floor?
A car traveling at 27.2 m/s hits a bridge abutment. A passenger in the car, who has a mass of 65.0 kg, moves forward a distance of 57.0 cm while being brought to rest by an inflated air bag. Assuming that the force that stops the passenger is constant, what is the magnitude F of this force?
A diver with a mass of 110 kg on a high board 10.0m above the water’s surface dives off the board into the pool and continues straight downwards underwater for 2.0m until she is eventually brought to a halt by the water. What is the average force the water exerts on the swimmer as it slows her down?
Two penguins, Wheezy and Mumble, are racing down an icy slope into the water below. Wheezy has a mass of 22 kg. Mumble has a mass of 25 kg. The slope is angled at eight degrees to the horizontal. They both start from the same position at the same time, and slide down the icy slope entirely due to gravity alone. There is a coefficient of kinetic friction of 0.12 between the penguins and the ice. Who wins the race and what is the winner's acceleration when they reach the finish line (ie the water)?
A waitress shoves a ketchup bottle with mass 0.45 kg to her right along a smooth, level lunch counter. The bottle leaves her hand moving at 2.8 m/s, then slows down as it slides because of a constant horizontal friction force exerted on it by the countertop. It slides for 1.0 m before coming to rest. What is the magnitude of the friction force acting on the bottle?
A 83 kg man is running across a sheet of ice at a speed of 2.6 m/s. He tries to stop abruptly, but keep sliding. The ice exerts a frictional force of 10 N to slow them down. How far do they travel before stopping? Use a dynamic appoach.
Consider the system of two crates shown below, which are tethered to each other by a massless string, which runs over a massless frictionless pulley. Crate 1's mass is m, = 35.0 kg and crate 2's mass is m2 = 60.0 kg. Suppose crate 1 slides L = 22.0 m up the ramp and starts from rest. The coefficient of kinetic friction between crate 1 and the ramp is k = 0.205. Determine the speed of crate 1 after sliding L = 22.0 m up the ramp. Let 0 = 31.7°.
A robot with fancy wheels is trained to move in two directions simultaneously. The force in the forward direction is 10 N and the force in the horizontal direction is 8 N. If the robot starts from rest, has a mass of 75 kg and travels for 100 seconds, what is the magnitude of the robot's final displacement?