Leroy who has a mass of 100kg, is skateboarding at 9.0 m/s when he smacks into a brick wall and comes to a dead stop at 2.0 s

show that his acceleration us 45 m/s2

Question

Rosie

11 December, 17:48

+1

Answers (1)

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Kailee Weiss · Answer 1

F = m*a

a = v/t

a = 9.0 m/s / 2.0 s

a = 4.5 m/s^2

F = 100 kg * 4.5 m/s^2

F = 450 N

Sig figs = 500 N?

Leroy who has a mass of 100kg, is skateboarding at 9.0 m/s when he smacks into a brick wall and comes to a dead stop at 2.0 sshow that his acceleration us 45 m/s2