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Two projectiles are launched from a buil...

Two projectiles are launched from a building of height `'h'` as shown in the figure. One is launched at angle `theta` above horizontal and the other at angle `theta` below horizontal. Both the projectiles have same initial speed `u`. Which of the following is /are correct?

A

The difference in the times of flight for these two projectiles is `(2u sin theta)/g`

B

The horizontal distance between these two projectiles when they reach the ground is `(2u^(2) sin theta cos theta)/g`

C

They have same speed when they reach the ground

D

They have different speeds when they reach the ground

Text Solution

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The correct Answer is:
A, B, C
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DC PANDEY-KINEMATICS-MCQ_TYPE
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  3. Choose the correct alternative (s)

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  9. A particle is projected from ground with velocity 40sqrt(2)m//s at 45^...

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  10. Two particles are projected from ground with same intial velocities at...

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  11. If T is the total time of flight, h is the maximum height and R is the...

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  12. A ball is rolled off along the edge of a horizontal table with velocit...

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  13. Consider a shell that has a muzzle velocity of 45ms^(-1) fired from th...

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  14. For projectile motion, which of the following graphs is/are corrects.

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  15. Two balls projected at different times have trajectories A and B as sh...

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  18. A projectile is thrown horizontally forma height 'h' a shown in the fi...

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