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- You push a file cabinet up a frictionless ramp tilted at 10°with horizontal. The file cabinet has a mass of 100 kg and you are pushing with a 700 N force in the direction up along the ramp. The file cabinet has initial speed of 2.0 m/s. It’s moved 8.0 m up along the ramp. What is the final speed of the cabinet?A 800kg car and driver accelerates at rate of 35 m/s/s. What force is necessary to bring the car to a complete stop?A 2kg object is moving horizontally with a speed of 4m/s. how much net force is required to keep the object moving at this speed and in this direction?
- A child and sled with a combined mass of 53.9 kg slide down a frictionless slope. If the sled starts from rest and has a speed of 8.98 m/s at the bottom, what is the height of the hill? m ( ± 0.02 m)A 1000 kg object is rising. Its speed is increasing at 3 m / s2. The force on the object is:A 2kg rock is moving at a speed of 6m/s. What is the magnitude of the force needed to stop the rock in 0.7s?
- A child on a sled with a total mass of 45.0 kg slides down an icy hillside with negligible friction. The sled starts from rest and has a speed of 3.00 m/s at the bottom. What is the height of the hill (in m)?A child and a sled with a combined mass of 50.0 kg slidedown a frictionless slope. If the sled starts from rest and has aspeed of 3.00 m/s at the bottom, what is the height of the hill?A dog with a mass of 57.0 kg slides down a wet slope with negligible friction. The dog starts from rest and has a speed of 2.10 m/s at the bottom. What is the height of the slope (in m)?
- Ima Scaarred (m=56.2 kg) is traveling at a speed of 12.8 m/s at the top of a 19.5-m high roller coaster loop. Determine Ima's speed at the bottom of the loop.An adult dolphin weighs around 1410 N. How fast must it be moving as he leaves the water vertically in order to jump to a height of 2.30 m? Ignore air resistance.A 60.0 kg skier with an initial speed of 16.5 m/s coasts up a 2.50 m high rise as shown in the figure. Find her final speed right at the top, in meters per second, given that the coefficient of friction between her skis and the snow is 0.35.