MHT-CET

Motion In One Dimension question bank (Physics)

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Q1.

A train accelerates from rest at a constant rate 'p' for some time (attains velocity 'v') and then retards to rest at the constant rate 'q'. If the total distance covered by the train is 's', then the velocity 'v' of the train is

(A)

$\left( \left( \dfrac{p+q}{2pq} \right) \times s \right)^{\frac{1}{2}}$

(B)

$\left( \left( \dfrac{p-q}{2pq} \right) \times s \right)^{\frac{1}{2}}$

(C)

$\left( \left( \dfrac{2pq}{p+q} \right) \times s \right)^{\frac{1}{2}}$

(D)

$\left( \left( \dfrac{2pq}{p-q} \right) \times s \right)^{\frac{1}{2}}$

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Q2.

The acceleration ($a$) -time ($t$) graph for the body starting from rest is as shown in the figure. The maximum speed of the body is

(A)

$200\ \text{m/s}$

(B)

$160\ \text{m/s}$

(C)

$80\ \text{m/s}$

(D)

$40\ \text{m/s}$

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