URGENT! 40 POINTS! For each situation below, make a model of the situation and find the work done on the box using both energy and forces. 1. A 2 kg box with some initial velocity slides up a frictionless ramp, which is at a 15ᵒ

angle to the ground, until the box comes to rest 1 second later.

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

1 second.

3. 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.

4. 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.