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An object at rest starts with a horizontal acceleration. After T seconds,the acceleration changes direction but reverses direction. How much time from the start does it take for the object to return to its starting point?

An object at rest starts with a horizontal acceleration. After T seconds,the acceleration changes direction but reverses direction. How much time from the start does it take for the object to return to its starting point?

Grade:10

1 Answers

Abhishek Kumar
askIITians Faculty 253 Points
6 years ago
Final velocity,
v = u +at = at
s = ½.at2
Now,
For return journey,
s = vt’ + 1/2at’2
Find t’

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