Question

if an object changes its velocity from 36 kilometre per hour to 72 kilometre per hour in 5 second and find distance cover​

Answer 1

Answer:

Answer

Correct option is

B

1m/s

2

in the given question we have

u=36 km/hr =36×

18

5

m/s=10m/s

v= 72 km/hr=72×

18

5

m/s=20m/s

t=10 s

a=?

we know the formula

v= u +at

20 = 10+ a 10

20-10 =10 a

10 = 10 a

a = 1 m/s

2