Acar leaves the road traveling at 110 km/h and hits a tree, coming to a stop in 0.14 s. what average force does a seatbelt exert on a 60-kg passenger during this collision? wolfson, richard. essential university physics, volume 1 (page 67). pearson education. kindle edition.

We use the Newtons law,

                       (A)

Equation of motion,

                  (B)

Here, v is final velocity , u is initial velocity and a is acceleration.

Given   .

As car coming to stop, so final velocity becomes zero i.e  .

Substituting these values in equation (B), we get

Here, negative sign means, deceleration to rest.

As given the mass of passenger, m = 60 kg.

Therefore, from equation (A),

Thus , the force seat belt exert on the passenger during the collision is

increase masses, decrease separation

answer is slate

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