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A ball is thrown vertically upwards from...

A ball is thrown vertically upwards from a height of 40 m and hits the ground with a speed that is three times its initial seepd. What is the time taken (in sec) for the fall ?

A

2 sec

B

3 sec

C

4 sec

D

8 sec

Text Solution

Verified by Experts

The correct Answer is:
C
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MOTION-KINEMATICS-EXERCISE 1 OBJECTIVE PROBLEMS
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  2. A particle is thrown upwards from ground. It experiences a constant re...

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  3. A ball is thrown vertically upwards from a height of 40 m and hits the...

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  4. A ball of mass m is thrown upward with a velocity upsilon. If air exer...

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  7. The variation of velocity of a particle moving along straight line is ...

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  8. The displacement-time graph for two particles A and B are straight lin...

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  9. The v-t graph of a linear motion is shown in adjoining figure. The dis...

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  10. The adjoining curve represents the velocity-time graph of a particle, ...

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  11. In the following velocity-time graph of a body, the distance and displ...

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  12. If position time graph of particle is sincurve as shown, what will be...

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  13. The diagram shows variation of (1)/(v) with respect to time (where v i...

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  14. The particle moves with rectilinear motion given the acceleration-disp...

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  15. Figure shows the graph of the x-co-ordinate of a particle going along ...

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  16. Figure shows the graph of velocity versus time for a particle going al...

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  17. Displacement-time graph of a particle moving in a straight line is as ...

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  18. Displacement-time graph of a particle moving in a straight line is as ...

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  19. Velocity-time graph of a particle moving in a straight line is shown i...

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  20. Velocity-time graph of a particle moving in a straight line is shown i...

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