A boy coasts down a hill on a sled, reaching a level surface at the bottom with a speed of 7.0 m/s. If the coefficient of friction between the sled’s runners and the snow is 0.050 and the boy and sled together weigh 600 N, how far does the sled travel on the level surface before coming to rest?

A 65-kg ice skater coasts with no effort for 75 m until she stops. If the coefficient of kinetic friction between her skates and the ice is at the start of her coast? mk = 0.10, how fast was she moving at the start of her coast?

A force of {N} pushes a 16-kg shopping cart (parallel to a horizontal surface) for a time of 10 seconds. If the cart was initially at rest, what is the final speed?

A heavy crate is suspended from two ropes as it is lowered from a high shelf to the floor at a constant speed. One of the ropes makes an angle of 26.5 degrees with respect to the vertical and has a tension of 653 N, while the other makes an angle of 31.5 with respect to the vertical. What is the crate's mass in kg?

The century-old ascensores in Valparaiso, Chile, are small cable cars that go up and down the steep hillsides. As (Figure 1) shows, one car ascends as the other descends. The cars use a two-cable arrangement to compensate for friction; one cable passing around a large pulley connects the cars, the second is pulled by a small motor. Suppose the mass of each car (with passengers) is 1400 kgkg, the coefficient of rolling friction is 0.030, and the cars move at constant speed.   Figure 1 of 1The figure shows two cable cars at a 35 degrees incline. A lower car is connected to a cable, which is fed through a pulley uphill. From the pulley the cable runs to the second car down the hill. From the second car another cable runs uphill to a motor. The lower car moves downhill while the upper car moves uphill.   Part A What is the tension in the connecting cable?

A 5 kg block is given an initial velocity of 10 m/s. If there is a friction force of 13 N opposing the motion of the block, how far will the block move before coming to a rest?

A heavy crate is suspended from two ropes as it is lowered from a high shelf to the floor at a constant speed. One of the ropes makes an angle of 28.2 degrees with respect to the vertical and has a tension of 950 N, while the other makes an angle of 33.7 with respect to the vertical. What is the crate's mass in kg?

A 0.087 kg arrow is fired horizontally. The bowstring exerts an average force of 80 N on the arrow over a distance of 0.90 m. With what speed does the arrow leave the bow? m/s

A hockey puck with mass 0.166 kg is pushed across the ice with a constant force of 0.89 N. The coefficient of kinetic friction between the puck and the ice is 0.22. After a distance of 2.6 m, what is the puck's speed in m/s?

The friction force that a horizontal surface exerts on a 62 kg object is 23 N. If the initial speed of the object is 27 m/s, what distance will it slide before coming to a stop?