Hi, please help me answer the following problem:

All answers should be to two significant figures, and include SI units where appropriate. Problem 1 You throw a ball of mass m = 0.80 kg straight downwards with an initial speed of v; = 1.5 m/s from a height of h; = 2.2 m. The ball bounces off the ground straight upwards. You would like to predict how high the ball will bounce. (a): 5 points What two major assumptions do you need to make in order to solve this problem? (b): 8 points Calculate how high the ball will bounce. (c): 7 points What was the impulse delivered to the ball by the ground during its bounce