Your go-cart breaks down right before the end of a race, so you have to push it over the finish line. the go-cart has a mass of 85 kg.

a. what is the weight of your go-cart?

b. how much force must you apply to give the go-cart an acceleration of 0.9 m/s^2

c. if you push with a force of 350 n, what is the acceleration of the cart?

d. later, you are driving your friend's go-cart. if his cart has an acceleration of 5.5 m/s^2 and the cart's engine is applying a forward force of 720 n, what is the mass of his go cart?