Question

what force is required to bring a 900 kg car to rest from a speed of 120 km/h within a distance of 50 m?​

Answer 1

Answer:

yes

Explanation:

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Answer 2

Explanation:

we know that

work = force × displacement

Kinetic Energy = mv²/2

Velocity = 120 / 3.6 = 33.33 m/sec

K.E. = 900 × 33.33² /2

K.E. = 999800 J

K.E. = work done

Also we put in above equation,

work = force × displacement

999800 = force × 50

force = 999800/50

force = 19996 N