URGENT! 40 POINTS! For each situation below, find the work done on the box using both energy and forces.

1. A 2 kg box initially at rest slides down a frictionless ramp (at 15ᵒ from the ground) for
1 second.

2. A 2 kg box is thrown upward with an initial speed of 3.5 m/s. Consider the box from
the time it was thrown until it reaches its maximum height.

3. A 2 kg box is dropped from an initial height of 10 m.


I have some physics, I just don't know what formulas to use or where to start. Help is much appreciated.