Question

a car travelling at a uniform velocity of 60 km per hour retards in 10 seconds and reaches a velocity of 45 km per hour find its retardation​

Answer 1

Answer:

Given,

Explanation:

final velocity(u)=60km/h =60*5/18 =50/3 m/s

Initial velocity(v)=45km/h =45*5/18 =25/2 m/s

Time (t)=10seconds

We know that,

Acceleration(a) =v-u/t

a =(25/2-50/3)÷10

=(75-100/6) ÷10

=-25÷10*6

=-25÷60

=-5÷12

=-0.416m/s*s

a=-0.42m/s*s

Answer 2

Answer:

Sorry for late answer

Explanation:

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