Home
Class 12
PHYSICS
A projectile projected with initial velo...

A projectile projected with initial velocity 20m/s and at and angle of `30^(@)` from horizontal. Find the total work done when it will hit the ground.

A

0

B

10

C

20

D

30

Text Solution

Verified by Experts

The correct Answer is:
A
Promotional Banner

Topper's Solved these Questions

  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise IMPECCABLE|54 Videos
  • WORK ENERGY AND POWER

    VMC MODULES ENGLISH|Exercise ENABLE|50 Videos
  • WAVE MOTION

    VMC MODULES ENGLISH|Exercise JEE ADVANCED ARCHIVE LEVEL 2 (TRUE FALSE TYPE)|4 Videos

Similar Questions

Explore conceptually related problems

If a projectile is projected with initial speed u and angle theta from horizontal then what will be its average power up to time when it will hit the ground again ?

A particle is projected with a velocity 10 m//s at an angle 37^(@) to the horizontal. Find the location at which the particle is at a height 1 m from point of projection.

Two particle are projected with same initial velocities at an angle 30^(@) and 60^(@) with the horizontal .Then

What is the range of a projectile thrown with velocity 98 m//s with angle 30^(@) from horizontal ?

A particle A is projected with an initial velocity of 60 m//s at an angle 30^@ to the horizontal. At the same time a second particle B is projected in opposite direction with initial speed of 50 m//s from a point at a distance of 100 m from A. If the particles collide in air, find (a)the angle of projection alpha of particle B, (b) time when the collision takes place and (c) the distance of P from A, where collision occurs. (g= 10 m//s^2)

A particle A is projected from the ground with an initial velocity of 10m//s at an angle of 60^(@) with horizontal. From what height should an another particle B be projected horizontally with velocity 5m//s so that both the particles collide in ground at point C if both are projected simultaneously g=10 m//s^(2) .

A football ils kicked with a velocity of 20 m/s at an angle of 45^0 wilth the horizontal. A. Find the time taken by the ball to strike the ground. b.Find the maximum height it reaches. C. How far away from the kick dows it hit the ground? Take g=10 m/s^2 .

A body is thrown with a velocity of 9.8 m/s making an angle of 30^(@) with the horizontal. It will hit the ground after a time

A body is projected with an initial elocity 20m/s at 60° to the horizontal. The displacement after 2 s is

A stone is projected from the ground with a velocity of 20 m/s at angle 30^(@) with the horizontal. After one second it clears a wall then find height of the wall. (g=10 ms^(-2))

VMC MODULES ENGLISH-WORK ENERGY AND POWER -EFFICIENT
  1. A rod of length 1.0 m and mass 0.5 kg fixed at one end is initially ha...

    Text Solution

    |

  2. A ball moving with a velocity v hits a massive wall moving towards the...

    Text Solution

    |

  3. A projectile projected with initial velocity 20m/s and at and angle of...

    Text Solution

    |

  4. A particle of mass 1 kg is moving along x - axis and a force F is also...

    Text Solution

    |

  5. If a projectile is projected with initial speed u and angle theta from...

    Text Solution

    |

  6. An 8 kg block accelerates uniformly from rest to a velocity of 4 m s^(...

    Text Solution

    |

  7. Consider the following statement. When jumping from some height, you s...

    Text Solution

    |

  8. An engine is working at a constant power draws a load of mass m agains...

    Text Solution

    |

  9. The potential energy of a system increase,if work is done

    Text Solution

    |

  10. A body projected vertically from the earth reaches a height equal to e...

    Text Solution

    |

  11. Power applied to a particle varies with time as P=(4t^(3)-5t+2) watt, ...

    Text Solution

    |

  12. An engine develops 10 kW of power. How much time will it take to lift ...

    Text Solution

    |

  13. What is work done when body will displaces perpendicular to the force ...

    Text Solution

    |

  14. A tube - well pump out 2400 kg of water per minute. If water is comin...

    Text Solution

    |

  15. A mass m moving horizontal (along the x-axis) with velocity v collides...

    Text Solution

    |

  16. A car of mass m starts from rest and accelerates so that the instantan...

    Text Solution

    |

  17. A solid cylinder of mass 3 kg is rolling on a horizontal surface with ...

    Text Solution

    |

  18. 300J of work is done in slinding a 2 kg block up an inclined plane of ...

    Text Solution

    |

  19. A sheel of mass 200g is ejected from a gun of mass 4 kg by an explosio...

    Text Solution

    |

  20. Two particles of masses m(1), m(2) move with initial velocities u(1) a...

    Text Solution

    |