Question

12) A body is moving with a speed of
40 kilometre per hour. once again
later it is moving at 58 kilometre per
hour.What is its acceleration a) 2m/s2
b) 1 m/s2 c) 5 m/s2 d) 3.6 m/s2 *
Choose​

Answer 1

Answer:

5m/s^2

Explanation:

as you know ,  

a = v-u / t  

here,

u = 40 km / hr = 11.1 m/s  

v = 58 km / hr = 16.1 m/s  

t = 1 second  

so , a = 16.1 - 11.1 / 1 =  05.0 m /s = 5 m/s^2