Question

if a ball spin 30 times in 6 throw at 10 min what will be the speed
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Answer 1

Step-by-step explanation:

Taking upword direction as +ve,

u=+30m/s

a=−g m/s

2

s=0[As the ball is reaching its initial position.]

By second equation of motion,

0=30×t+

2

1

(−10)×t

2

⟹0=30−5t

⟹t=6sec