Question

A body is travelling at a speed of 20m/sec . After 5 sec the speed of the body becomes 30m/sec . Determine the acceleration of the body

Answer 1

Answer:

2m/s2

Explanation:

v=u+at

30=20+5a

10=5a

a=2

Answer 2

Answer:

2m/s

Explanation:

1a=20m/s

2a=30m/s

t=5sec

therefore,

=(30m/s-20m/s)÷5

=(10m/s)÷5

=(2m/s)÷1

a=2m/s