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A 0.5 kg ball moving with a speed of 12 ...

A `0.5 kg` ball moving with a speed of `12 m//s` strikes a hard wall at an angle of `30^(@)` with the wall. It is reflected with the same speed and at the same angle . If the ball is in contact with the wall for `0.25 s`, the average force acting on the wall is

A

48 N

B

24 N

C

12 N

D

96 N

Text Solution

Verified by Experts

The correct Answer is:
B
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MOTION-NEWTON'S LAWS OF MOTION & FRICTION -Exercise - 3 Section-A
  1. A 0.5 kg ball moving with a speed of 12 m//s strikes a hard wall at an...

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  2. In the figure given below, the position–time graph of a particle of ma...

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  3. A person is standing in an elevator. In which situation he finds his w...

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  4. A person used force (F) , shown in figure to move a load with constant...

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  5. The ratio of gravitational mass to inertial mass is equal to:

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  6. The mass of a lift is 2000kg . When the tensioon in the supporting cab...

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  7. A body, under the action of a force vec(F)=6hati -8hatj+10hatk , acqui...

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  8. A monkey of mass mkg slides down a light rope attached to a fixed spri...

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  9. A block of mass m is in contact with the cart C as shown in The coeffi...

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  10. A person of mass 940 kg and presses the button on control panel. Then ...

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  11. A body mass M hits normally a rigid wall with velocity v and bounces b...

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  12. Assertion: The driver in a vechicle moving with a constant speed on a ...

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  13. A system consists of three masses m(1),m(2) " and " m(3) connected by ...

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  14. The force F acting on a partical of mass m is indicated by the force-t...

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  15. A balloon carring some sand is moving down with a constant acceleratio...

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  16. A block A of mass m(1) rests on a horizontal table. A light string con...

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  17. Three blocks A , B and C of masses 4kg , 2kg and 1kg respectively are ...

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  18. A sphere of radius 25 cm and mass 1 kg is hung by a string of negligib...

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  19. Find tension in string if theta = 30^(@) and the mass hanged in middl...

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  20. During the rocket propulsion, gases ejecting with velocity 1 km/s rela...

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