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

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  • 1 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.

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