Question

1. A soccer ball with a 0.42 kg mass was kicked to a maximum height of 20 m. a) Compute for the maximum PE energy of the ball. b) What is the velocity of the ball before hitting the ground?

Given: m = 0.42 kg d- 20 m
Unknown: PE=?
Solution:

a. PE
b. v

2. A wrecking ball with a mass of 500 kg swung from a height of 4.5 m from the ground. Compute for the a) total mechanical energy of the system, b) KE of the ball at 0 m Given: m = 500 kg: h= 4.5 m

Unknown: MAKE =?
Solution: a. MEt

b. KE​

Answer 1

Answer:

A soccer ball with a 0.42 kg mass was kicked to a maximum height of 20 m. a) Compute for the maximum PE energy of the ball. b) What is the velocity of the ball before hitting the ground?

Given: m = 0.42 kg d- 20 m

Unknown: PE=?

Solution:

a. PE

b. v

2. A wrecking ball with a mass of 500 kg swung from a height of 4.5 m from the ground. Compute for the a) total mechanical energy of the system, b) KE of the ball at 0 m Given: m = 500 kg: h= 4.5 m

Unknown: MAKE =

Solution: a. MEt

b. KE