Home
Class 11
PHYSICS
An athlete in the Olympic gamed covers a...

An athlete in the Olympic gamed covers a distance of `100 m` in `10 s`. His kinetic energy can be estimated to be in range.
(1) `200 J - 500 J`
(2) `2 xx 10^(5) J - 3 xx 10^(5) J`
(3) `20,000 J - 50,000 J`
(4) `2,000 J - 5,000 J`.

A

200 J - 500 J

B

`2xx10^5J-3xx10^5J`

C

20,000 J - 50,000 J

D

2000 J - 5000 J

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • Work, Energy and power

    SL ARORA|Exercise EXERCISE|415 Videos
  • Waves

    SL ARORA|Exercise EXERCISE|558 Videos
  • WORK, POWER AND ENERGY

    SL ARORA|Exercise Type F Based on Collisions|6 Videos

Similar Questions

Explore conceptually related problems

W = 200 J h = 2m W = mgh = m xx 10 xx 2 ??

At two positons kinetic energy and potential energy of a particle are K_(1) =10J: U_(1) =-20J, K_(2) = 20 J, U_(2)=-10 J . In moving from 1 to 2 .

Can 10J of mechanical energy be converted to 10J of heat? Justify.

A moving electron has 5 xx 10^(-25) J of kinetic energy .What is the de Broglie wavelength ?

2i · (j xx k) - 3j · (i xx k) - 4k · (i xx j) =

Can 10J of mechanical energy produce 15J of heat? Explain.

SL ARORA-Work, Energy and power-EXERCISE
  1. When a rubber-band is stretched by a distance x, it exerts a restoring...

    Text Solution

    |

  2. A force vec(F)=(5hat(i)+3hat(j)+2hat(k))N is applied over a particle w...

    Text Solution

    |

  3. An athlete in the Olympic gamed covers a distance of 100 m in 10 s. Hi...

    Text Solution

    |

  4. A particle of mass 100 g is thrown vertically upwards with a speed of ...

    Text Solution

    |

  5. A ball whose kinetic energy is E , is projected at an angle of 45(@) t...

    Text Solution

    |

  6. A particle is projected at 60(@) to the horizontal with a kinetic ene...

    Text Solution

    |

  7. A particle moves in a straight line with retardation proportional to i...

    Text Solution

    |

  8. The potential energy of a 1 kg particle free to move along the x- axis...

    Text Solution

    |

  9. Consider the following two statements: A. Linear momentum of a syste...

    Text Solution

    |

  10. A spherical ball of mass 20kg is stationary at the top of a hill of he...

    Text Solution

    |

  11. A uniform chain of length 2 m is kept on a table such that a length of...

    Text Solution

    |

  12. A mass of M kg is suspended by a weightless string. The horizontal for...

    Text Solution

    |

  13. A spring of spring constant 5 xx 10^(2) Nm is streched initially by 5 ...

    Text Solution

    |

  14. A spring of force constant 800N//m has an extension of 5cm. The work d...

    Text Solution

    |

  15. A 2 kg block slides on a horizontal floor with a speed of 4 m/s. It st...

    Text Solution

    |

  16. A body of mass m, accelerates uniformly from rest to V(1) in time t(1)...

    Text Solution

    |

  17. A body is moved along a straight line by a machine delivering constant...

    Text Solution

    |

  18. If mass-energy equivalence is taken into account , when water is coole...

    Text Solution

    |

  19. A bomb of mass 16kg at rest explodes into two pieces of masses 4 kg an...

    Text Solution

    |

  20. A block of mass 0.50 kg is moving with a speed of 2.00 m/s on a smoot...

    Text Solution

    |