Home
Class 12
PHYSICS
Two particles A and B are projected simu...

Two particles A and B are projected simultaneously in the direction shown in the figure with velocities `V_(A)=20m//s` and `V_(B)=10m//s` respectively. If they collide in air after 1/2 sec. then

A

the angle `theta` is `60^(@)`

B

the angle `theta` is `45^(@)`

C

the angle `theta` is `30^(@)`

D

the angle `theta` is `37^(@)`

Text Solution

Verified by Experts

The correct Answer is:
C

`20 sin theta =10 implies sin theta =(1)/(2) impliestheta =30^(@)`
Promotional Banner

Topper's Solved these Questions

  • MAJOR TEST 2

    NEET MAJOR TEST (COACHING)|Exercise PHYSICS|45 Videos
  • MAJOR TEST 4

    NEET MAJOR TEST (COACHING)|Exercise PHYSICS|45 Videos

Similar Questions

Explore conceptually related problems

Two particles A and B are projected simultaneously in the directins shown in figure with velocities v_(A) = 20 m//s and v_(B) = 10 m//s respectively. They collide in air after 1/2 s. Find (a) the angle theta (b) the distance x. .

Two particles A and B are projected simultaneously in horizontal direction with speed 50 m//s and 100m//s respectively . If t_(A) and t_(B) are the time taken by the projectiles to hit the ground by the particles A and B respectively, then

Two particles are projected simultaneously from the level ground as shown figure. They may collide after a time :

Two particles A and B of masses 1kg and 2kg respectively are projected in the directions shown in figure with speeds u_A=200m//s and u_B=50m//s . Initially they were 90m apart. They collide in mid air and stick with each other. Find the maximum height attained by the centre of mass of the particles. Assume acceleration due to gravity to be constant. (g=10m//s^2)

Two particles A and B start at O travel in opposite directions along the circular path at constant speed v_(A)=0.7 m//s and v_(B)=1.5 m//s respectively. Determine the time when they collide and the magnitude of the acceleration of B just before this happening. ("radius"=5m)

Two particles A and B of equal mass are projected simultaneously with speed 10 m/s each as shown in figure. Find the co-ordinate of COM at t=10 s

Two particles are projected with speed 4m//s and 3m//s simultaneously from same point as shown in the figure. Then:

Two particles 1 and 2 are thrown in the directions shown in figure simultaneously with velocities 5 m//s and 20 m//s. Initially, particle 1 is at height 20 m from the ground. Taking upwards as the positive direction, find (a) acceleration of 1 with respect to 2 (b) initial velocity of with respect to 1 (c) velocity of 1 with respect to 2 after time t= 1/2 s (d) time when the particles will collide.

Two particles are projected with speed 4 m//s and 3 m//s simultaneously from same point as shown in the figure. Then :

Two perfectly elastic particles A and B of equal masses travelling along a line joining them with velocities 15 m//s and 10m//s respectively collide. Their velocities after the elastic collision will be (in m/s) respectively

NEET MAJOR TEST (COACHING)-MAJOR TEST 3-PHYSICS
  1. The rate of disintegration of a radioactive sample can be increased by...

    Text Solution

    |

  2. Three equal weight A,B and C of mass 2kg each are hanging on a string ...

    Text Solution

    |

  3. Two particles A and B are projected simultaneously in the direction sh...

    Text Solution

    |

  4. At 27^(@)C, a gas is suddenly compressed such that its volume becomes...

    Text Solution

    |

  5. A body of mass 32 kg is suspended by a spring balance from the roof of...

    Text Solution

    |

  6. A circular road of radius 50m has the angle of banking equal to 30^(@)...

    Text Solution

    |

  7. A lens has a power of 10 D, when placed in air. When it is immersed in...

    Text Solution

    |

  8. A water pump lifts water at the rate of 5 litre per second through an ...

    Text Solution

    |

  9. Figure. Shows a small loop carrying a current I. The curved portion is...

    Text Solution

    |

  10. Two particles are oscillating along two close parallel straight lines ...

    Text Solution

    |

  11. A parallel plate capacitor having capacitance 0.5mu is taken. Plates a...

    Text Solution

    |

  12. A surface s =10hatj is kept in an electric field. E = 2hati+4hatj+7ha...

    Text Solution

    |

  13. In PEE, value of K (max) is equal to K (0). If frequency of light is d...

    Text Solution

    |

  14. A Carnot's engine is made to work between 200^(@)C and 0^(@)C first an...

    Text Solution

    |

  15. In the given diagram substance A(Zn) and substance B(Mn) are placed at...

    Text Solution

    |

  16. Three masses M(1), M(2) and M(3) are lying on a frictionless table. Th...

    Text Solution

    |

  17. A monoatomic gas at pressure P(1) and volume V(1) is compressed adiaba...

    Text Solution

    |

  18. The electric field at a distance (3R)/2 from the centre of a charged ...

    Text Solution

    |

  19. A solid cylinder starts rolling from a height h on an inclined plane. ...

    Text Solution

    |

  20. Which of the following gate gives low output, when at least one input ...

    Text Solution

    |