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Q.8. When a car drivertravelling at a speed of 10 m/sapplies brakes and brings thecar to rest in 20 s, then theretardation will be:a. + 2 m/s2b. - 2 m/s2c. -0.5 m/s2d. +0.5 m/s2​

Answer»

ANSWER -

Given -

V = 0

U = 10 m/s

t = 20sec

To FIND -

Acceleration - a

Solution

By 1st equation of motion -

v = u + at

0 = 10 + 20a

20a = -10

a = -1/2 m/s^2

Thanks



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