Question

A car of mass 100kg is moving with a velocity 90kmph.What is the force required to stop the car in 10 seconds.
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Answer 1

Answer:

Step-by-step explanation:

A car of mass 100kg is moving with a velocity 90kmph.What is the force required to stop the car in 10 seconds.

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Answer 2

Answer:

900N. ( where N is Newton)

Step-by-step explanation:

.given

mass = 100 kg

time = 10 sec

velocity = 90 kmph

so from equation of motion

v = u + at

a = v - u/t

a = 90 - 0 / 10 ( 0 is initial velocity )

a = 9m/sec^2

Now force is given by :

F = ma

F = 100 × 9

so required force to stop the car is

F = 900 N