Question

0.466
When brakes are applied to a car moving with a uniform velocity of 36 km/hr, it comes to
stop after covering a distance of 50 m. Find the retardation of the car
(A) 1 m/s?
(B) 2 m/s2
RD 1070
(C)
= m/s
(D)
3 m/s2​

Answer 1

Answer:

1m/s2

Explanation:

Given,

u=36km/hr=10m/s

v=0m/s

s=50m

using third eqn. of motion,

v2=u2+2as

0=10*10+2(-a)50

0=100-100a

100a=100

a=100/100

a=1m/s2. ANS...

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