# Pam, wears a rocket pack, stands on ice. She has a mass of 45 kg. The rocket supplies a constant force for?

22.0 m, and gets a speed of 60.0 m/s.

(a) What is the magnitude of the force?

N

(b) What is Pam's final kinetic energy?

J

### 1 Answer

Relevance

- electron1Lv 71 year ago
Let’s use the following equation to determine the acceleration.

vf^2 = vi^2 + 2 * a * d, vi = 0 m/s

60^2 = 2 * a * 22

44 * a = 3600

a = 3600 ÷ 44

This is approximately 81.8 m/s^3

Force = 45 * (3600 ÷ 44)

This is approximately 3,682 N.

(a) What is the magnitude of the force?

N

(b) What is Pam's final kinetic energy?

KE = ½ * 45 * 60^2 = 81,000 J

I hope this is helpful for you.

Still have questions? Get answers by asking now.