Question

please solve this question step by step​

Answer 1

Explanation:

Case 1. u=0m/s , v=12m/s , t=30s.

v=u+at

12=0+a×30

a=0.4m/s^2.

Case 2. u=12m/s, v=8m/s, t=5s.

v=u+at

8=12+a×5

8-12=a×5

a= -4/5

a=0.8m/s^2.

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