Question

a diver decreases the apeed of a car from 25 m/s to 10 m/s in 5 sec. acceleration of the car​

Answer 1

Answer:

initial velocity (u) =25m/s

final velocity (v) = 10m/s

time (t) = 5 sec

acceleration =v-u

t

acceleration =10m/s-25m/s

5

= - 15

5

= -3 m/s 2

as the answer is negative so it is retardation

Answer 2

Answer:

-3

Explanation:

intial velocity =25m/s

final velocity=10m/s

time= 5sec,. a=?

w.k.t

v-u=at

a=v-u/t

a=10 -25/5

=-3

then it is retardation