Home
Class 12
PHYSICS
An object is thrown at an angle 60^(@) a...

An object is thrown at an angle `60^(@)` above horizontal with velocity `20ms^(-1)`. How do the radial acceleration `a_(c)` vary during ascent.

A

decreases

B

increases

C

remain same

D

data insufficient

Text Solution

Verified by Experts

`a_(r)=g cos theta`
`because theta` decreasing during ascent
`therefore a_(r)` increasing.
Promotional Banner

Topper's Solved these Questions

  • TEST PAPERS

    BANSAL|Exercise PHYSICS PART (A)|32 Videos
  • TEST PAPERS

    BANSAL|Exercise PHYSICS PART (B)|3 Videos
  • TEST PAPERS

    BANSAL|Exercise PHYSICS PART- C|4 Videos
  • SEMICONDUCTORS

    BANSAL|Exercise CBSE Question|32 Videos

Similar Questions

Explore conceptually related problems

An object is thrown at an angle alpha to the horizontal (0^@ lt alpha lt 90^@) with a velocity yo. How do the normal acceleration w_n and the tangential acceleration w_t vary in the process of ascent if the drag is ignored?

A particle is projected at an angle theta =30^@ with the horizontal, with a velocity of 10ms^(-1) . Then

An object is launched from a cliff 20 m above the ground at an angle of 30^(@) above the horizontal with an initial speed of 30m//s .How far does the object travel before landing on the ground?(in metre)

A ball is projected from the foot of an inclined plane of inclination 30^(@) at an angle 60^(@) with the horizontal,with velocity 20sqrt(3)ms^(-1) .The time after which the ball will strike the plane is

If an object is thrown at an angle of 60^(@) with horizontal, find elevation angle of the object at its highest point as seen from the point of projection.

A body is suspended by a string of length 1 m and is projected horizontally with a velocity of 4 ms^(-1) Calculate its tangential and radial accelerations when the string rises by 60^(@) from its initial position.

A body is projected with an initial speed of 100sqrt3ms^(-1) at an angle of 60^(@) above the horizontal. If g=10ms^(-2) then velocity of the projectile a) is perpendicular to it’s acceleration at the instant t=15 sec . b) Is perpendicular to initial velocity of projection at t=20 sec. c) Is minimum at the highest point d) Changes both in magnitude and direction, during its flight.

A ball is thrown at angle theta and another ball is thrown at an angle (90^(@)-theta) with the horizontal direction from the same point with velocity 39.2 ms^(-1) . The second ball reaches 50 m higher than the first ball. Find their individual heights. Take g = 9.8 ms^(-2) .

BANSAL-TEST PAPERS-PHYSICS
  1. A particle of mass 2kg start motion form rest on a circular path of ra...

    Text Solution

    |

  2. A boat is heading towards North with velocity 10ms^(-1) with respect t...

    Text Solution

    |

  3. An object is thrown at an angle 60^(@) above horizontal with velocity ...

    Text Solution

    |

  4. A ball weighing 10g hits a hard surface vertically with a speed of 5m/...

    Text Solution

    |

  5. A particle P moves in a circular path of radius R, with centre at O at...

    Text Solution

    |

  6. A man standing on flat car under the shed of a small umbrella as shown...

    Text Solution

    |

  7. A man drags a box of mass 20kg on a horizontal floor as shown in figur...

    Text Solution

    |

  8. Delhi is at latitude 30^(@)N longitude 78.5^(@) E. if the angular velo...

    Text Solution

    |

  9. A thin circular ring of mass per unit length p and radius r is rotatin...

    Text Solution

    |

  10. An apple of mass 0.5 kg is swing around on a string in a circle in a h...

    Text Solution

    |

  11. An apple of mass 0.5 kg is swing around on a string in a circle in a h...

    Text Solution

    |

  12. An apple of mass 0.5 kg is swing around on a string in a circle in a h...

    Text Solution

    |

  13. Four forces act on a point object. The object will be in equilibrium, ...

    Text Solution

    |

  14. A cicular road of radius r is blanked for a speed v=60 km/hr. A car of...

    Text Solution

    |

  15. A particle is projected with velocity 10m/s at an angle of 45^(@) with...

    Text Solution

    |

  16. In the figure shown, the coefficient of friction between the two block...

    Text Solution

    |

  17. A ship is moving at a constant of 10km/h in the direction of unit vect...

    Text Solution

    |

  18. A sphere of mass 0.5 kg rests at one corner of a cube. The cube is mov...

    Text Solution

    |

  19. A body starts revolving from rest in a circular path of radius 2 m wit...

    Text Solution

    |

  20. A block of mass 0.4kg is pulled along the curve path CAN slowly by a t...

    Text Solution

    |