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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?

vignesh , 10 Years ago
Grade 10
anser 1 Answers
Abhishek Kumar

Last Activity: 10 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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