Question

answer this question-........

Answer 1

here, U = 18m/s

t = 2.5 sec.

V = 0

Acceleration = V - U /T

= 0 - 18 / 2.5

= -18 / 2.5 = -180 /25

= -7.2 m/s^2

Retardation = 7.2 m/s^2 Ans.


second. question

u = 0 , a = 0.2 , t = 5min. = 300 sec.


V = U + at = 0 + 0.2 * 300

= 60 m/s Ans.

S = ut + 1/2at^2

= 0 + 1/2 * 0.2 * 300 * 300

= 60 * 150

= 9000 m Ans.

Answer 2

I hope you got your answer