Question

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

Answer 1

Answer:

acceleration=-1.5m/s^2

Explanation:

retradation=1.5m/s^.2

Answer 2

Explanation:

Initial velocity = 60km/h

= 50/3 m/s

Final velocity = 45km/h

= 25/2 m/s

Time = 10s

From formula,

v = u + at

25/2 = 50/3 + 10a

10a = 25/2 - 50/3

10a = (75 - 100)6

10a = - 25/6

a = - 5/12 m/s²

a = - 0.4167 m/s²

Retardation = 0.4167 m/s²