A car with a crashtest dummy inside travels at 40.23 m/s (90 mph) toward a stone wall during a crash test. When it strikes the wall, the car

Question

A car with a crashtest dummy inside travels at 40.23 m/s (90 mph) toward a stone wall during a crash test. When it strikes the wall, the car takes 0.70 s to stop. Calculate the deceleration of the car.

in progress 0
Tài Đức 4 years 2021-09-03T19:32:23+00:00 1 Answers 25 views 0

Answers ( )

  1. thnahdat
    0
    2021-09-03T19:34:04+00:00
    Reply

    Answer:

    The answer is  -57.47m/s^{2}

    Explanation:

    In the question we are  to solve for the deceleration  of the car on impact.

    Given data

    speed= 40.23m/s\\

    time =0.70second

    To determine the deceleration  we apply,

    acceleration = \frac{speed}{time} \\\\acceleration= \frac{40.23}{0.7}

    acceleration = -57.47m/s^{2}

Leave an answer

Browse

Giải phương trình 1 ẩn: x + 2 - 2(x + 1) = -x . Hỏi x = ? ( )