Question

A car is having a velocity of 36 kmh in North
direction. Half a minute later, it was seen moving
towards South at a velocity of 18 kmh. Find the
average acceleration of the car during the half
minute interval. Express your answer in ms
(1) 0.5m/s towards north
(2) 0.5m/s towards south
(3) 0.5m/s towards west
(4) 0.5m/s2 towards east.​

Answer 1

Answer:

Explanation:

u=36km/hr=10ms  

−1

 

a=2.5ms  

−2

,t=5sec

v=u+at

v=10+(2.5×5)

  =22.5ms  

−1

 

v  

2

−u  

2

=2as

⇒  

2×2.5

22.5  

2

−10  

2

 

​  

=s

s=81.25m

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Answer 2

Explanation:

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