An object has the acceleration v/s time graph shown.

Engineering

Physics

Rectilinear

Question

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Linked Question 1

When is the object at rest?

Impossible to determine from the given information

Between t = 4 s and t = 8 s

At t = 4 s

At t = 0 s

No solution

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Linked Question 2

When does the object return to it’s initial velocity?

At t = 4 s

At t = 8 s

Impossible to determine from the given information

At t = 7 s

A₁ = 4 × 1.5 = 6
A₂ = 2 × t’ = 2t’
t’ = 3
t = 3 + 4 = 7

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