Mixed Practice Problems

1. A 2 kg block is pushed 5 m along a frictionless surface by a 10 N force. Find the work done.
2. A 3 kg object slides down a frictionless ramp of height 4 m. Find its speed at the bottom.
3. A 5 kg box is lifted vertically 2 m. Compute work done by gravity.
4. A 1 kg ball is thrown upward at 10 m/s. Find its maximum height using energy conservation.
5. A 4 kg object slides down a 3 m high ramp with friction 5 N. Determine speed at the bottom.
6. A 3 kg object is acted upon by a 6 N horizontal force over 2 m. Find the work done.
7. A roller coaster of mass 500 kg starts from rest at 15 m height. Find speed at 5 m using energy conservation.
8. A 2 kg object slides down a frictionless ramp. Compute work and kinetic energy at bottom.
9. A 6 kg block slides down a 5 m high ramp with µk = 0.1. Find speed at bottom.
10. A 3 kg object falls from 8 m. Determine its kinetic energy just before hitting the ground.