Question

please me in this question I have exam soon plz help me friends.......
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Answer 1

Step-by-step explanation:

t = 0.5 s

u = 2.4 m/s

v = 4.9 m/s

Using , v - u = at

4.9 - 2.4 = 0.5 a

2.5 = 0.5 a

acc = 5 m/s^2

F = ma

Mass remains constant and as same force is applied ,

therefore, acc is same

t = 2.5 sec

a = 5 m/s^2

v - u = at

v - u = 2.5 × 5

Change in speed = 12.5 m/s