Question

A toy car initially moving with a uniform velocity of 18 km/ h comes to a stop in 2 seconds.Find the retardation of the car.​

Answer 1

Answer:

18 km/h = 18*5/18 m/s

(to convert km/h into m/s multiply the speed in km/h by 5/18)

v=0

u=5

v=u+at

0=5+a*2

a= -2.5 m/s^2

Answer 2

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