A mass of 3.00 kg is initially at rest upon a frictionless incline with a 30.8 degree angle of inclination. If it is released from rest, what will its speed be after sliding 1.70 m down the incline?

A mass of 3.77 kg is launched straight upward. At some instant later it has lost 62.8 J of kinetic energy. What is the height of the object at that time, relative to its initial elevation? Assume air resistance can be ignored.

You drop a 2.20 kg book to a friend who stands on the ground at distance D = 15.0 m below. Your friend's outstretched hands are at distance d = 1.30 m above the ground (see the figure). (a) What is the speed of the book when it reaches her hands? (b) If we substituted a second book with twice the mass, what would its speed be when it reaches her hands? (c) If, instead, the book were thrown down with initial speed 6.80 m/s, what would be the answer to (a)? (a) Number i Units (b) Number i Units (c) Number i Units

A 1400 kg car delivers a constant 42 hp to the drive wheels. We assume the car is traveling on a level road and that all frictional forces may be ignored.Calculate the car's acceleration when its speed is 20 m/s

A cookie jar is moving up a 45° incline. At a point 53 cm from the bottom of the incline (measured along the incline), the jar has a speed of 1.6 m/s. The coefficient of kinetic friction between jar and incline is 0.14. (a) How much farther up the incline will the jar move? (b) How fast will it be going when it has slid back to the bottom of the incline? (c) Do the answers to (a) and (b) increase, decrease, or remain the same if we decrease the coefficient of kinetic friction (but do not change the given speed or location)?

A cookie jar is moving up a 42 ° incline. At a point 56 cm from the bottom of the incline (measured along the incline), the jar has a speed of 1.2 m/s. The coefficient of kinetic friction between jar and incline is 0.17. (a) How much farther up the incline will the jar move? (b) How fast will it be going when it has slid back to the bottom of the incline? (c) Do the answers to (a) and (b) increase, decrease, or remain the same if we decrease the coefficient of kinetic friction (but do not change the given speed or location)? (a) Number i (b) Number (c) Units Units

Suppose a box of mass 5 kg is initially at rest on a frictionless horizontal surface. A constant force of 10 N is applied horizontally to the box for 4 seconds, and then a 7 N force of the same direction is applied for another 4 seconds. (a) Find the total distance that the box traveled. (b) Find the total work done on the box.

A skier starts at the top of a frictionless slope and pushes off with a speed of 3.0 m/s. The elevation of the slope is 40 m. She skis down the slope to a valley with elevation 0.0 m and then glides to the peak of an adjacent slope that is at an elevation of 25 m. Calculate her speed at the second peak

My 25-kilogram garbage cart has a broken wheel. I pull it to the curb with a force of 200N, while kinetic friction drags backwards with a force of 150N. Starting at rest, how fast is the cart moving after travelling two meters?

Consider a 0.5 kg mass at the top of a 1.5 m high (vertical) incline. if it is allowed to slide down with negligible friction, what will be its speed (in m/s) at the bottom?