3. Sarah, who has a mass of 55 kg, is riding in a car at 20 m/s. She sees a cat crossing the street and slams on the brakes! Her seatbelt stops her from flying forward, bringing her to rest in 0.5 seconds. How much force did the seatbelt put on Sarah?

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Branden Hunt

16 October, 23:20

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Braylon Garner · Answer 1

Force = (kg) (m/s^2)

If we plug in the values, force = (55kg) ((20m/s) / 0.5s) = (55g) (40m/s^2) = 2200N