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Standard XI

Physics

1st Equation of Motion

A car is trav...

Question

A car is travelling with a constant speed of 5 m/s. suddenly superman comes and starts pushing from behind providing a constant acceleration of 5 m/ $s^{2}$ . Find the velocity of the car after 2 sec.

10 m/s

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25 m/s

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15 m/s

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35 m/s

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Solution

The correct option is C
15 m/s

u = 5 m/s

a = 5 m/ $s^{2}$ v = u + at

t = 2 sec v = 5 + 5 $\times$ 2 = 15 m/s

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A car is travelling with a constant speed of 5 m/s. suddenly superman comes and starts pushing from behind providing a constant acceleration of 5 m/s2. Find the velocity of the car after 2 sec.

The correct option is C 15 m/s u = 5 m/s a = 5 m/s2 v = u + at t = 2 sec v = 5 + 5 × 2 = 15 m/s

A car is travelling with a constant speed of 5 m/s. suddenly superman comes and starts pushing from behind providing a constant acceleration of 5 m/ $s^{2}$ . Find the velocity of the car after 2 sec.

The correct option is C
15 m/s

u = 5 m/s

a = 5 m/ $s^{2}$ v = u + at

t = 2 sec v = 5 + 5 $\times$ 2 = 15 m/s