Question

a car travelling at 54ma car travelling at 54 km per hour is slow down to 36 km per hour in 10 seconds find the retardation of the car ​

Answer 1

u =54×5/18=15m/s

v=36×5/18=10m/s

a=v-u/t

=10-15/10

= -1/2m/s^2= -0.5m/s^2

Answer 2

retardation is 0.5 m/s^2

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