Question

The velocity of a body is reduced from 15m/sec
to 10 m/sec in 5 seconds. Then the acceleration
will be:
(a) 1 m/sec? (b) 10 m/sec? (c)5 m/sec(d) 8 m/sec​

Answer 1

Answer:

The retardation is , a) 1m/s

Explanation:

We have,

Initial velocity, u = 15m/s

Final velocity , v = 10 m/s

Time , t = 5secs

Using 1st equation of motion,

V= U + A*T

10 = 15 + a * 5

-5= a*5

- 5 / 5 = a

-1= a

Therefore, a= -1 m/s or 1m/s

(According to observer)

Mark as brainliest pls

Thxs