Question

Find the acceleration (in m/s²) of a body which accelerates from 10 m/s to 20 m/s in 4 s.

(a) 7.5

(b) 5

(c) 15

(d) 2.5

Answer 1

Correct option is (d) 2.5

As we know that, acceleration = change in velocity/time

= 20-10/4

= 10/4

= 2.5 m/s²