Question

Aqar moving with uniform velocity 60 km per hour returns in 10 seconds and uses 45 kilometre per hour find the retardation

Answer 1

Answer:

The question is not totally cleared to me .

Explanation:

here u = 60 kmph = 16.67m/s

and. v = 45 kmph = 12.5 m/s

t = 10 sec

so retardation a = (16.67-12.5)/10

= 0.417 m/s2