1.

A car travelling at 60km /h uniformly retards for 10s and reaches a velocity of 45 km/h. Find the retardation

Answer» HEY there here is your answer

initial velocity (U) = 60km/h = 50/3 m/s
final velocity (v) = 45km/h = 25/2 m/s
time = 10 s
retardation or negative ACCELERATION
= v-u/t = 25/2 - 50/3 ÷10 =75-100 /60 = -25/60 = -5/12 = 0.416 m/s^2

hope it HELPS


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