4. How much force is required to stop a 60 kg person traveling at 30 m/s during a time of a)

5.0 seconds

b) 0.50 seconds

c) 0.05 seconds

Question

Physics

Leonard Haynes

11 January, 18:55

4. How much force is required to stop a 60 kg person traveling at 30 m/s during a time of a)

5.0 seconds

b) 0.50 seconds

c) 0.05 seconds

+5

Answers (1)

Know the Answer?

Killian Cline · Answer 1

F = ma, and a = Δv / Δt.

F = m Δv / Δt

Given: m = 60 kg and Δv = - 30 m/s.

a) Δt = 5.0 s

F = (60 kg) (-30 m/s) / (5.0 s)

F = - 360 N

b) Δt = 0.50 s

F = (60 kg) (-30 m/s) / (0.50 s)

F = - 3600 N

c) Δt = 0.05 s

F = (60 kg) (-30 m/s) / (0.05 s)

F = - 36000 N

4. How much force is required to stop a 60 kg person traveling at 30 m/s during a time of a)5.0 secondsb) 0.50 secondsc) 0.05 seconds

4. How much force is required to stop a 60 kg person traveling at 30 m/s during a time of a)

5.0 seconds

b) 0.50 seconds

c) 0.05 seconds