Home
Class 11
PHYSICS
A body is moving with velocity 30m//s to...

A body is moving with velocity `30m//s` towards east .After 10 seconds its velocity becomes` 40m//s` towards north .The average acceleration of the body is

A

`5m//s^2`

B

`1m//s^2`

C

`7m//s^2`

D

`sqrt7m//s^2`

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • BULK MATTER

    SARAS PUBLICATION|Exercise EXAMPLE|43 Videos

  • KINEMATICS

    SARAS PUBLICATION|Exercise EXAMPLE|23 Videos

Similar Questions

Explore conceptually related problems

A particle is moving eastwards with a velocity of 5 m/s. In 10s the velocity changes to 5 m/s northwards. The average acceleration in this time is

If an object is moving with velocity 54km/h. What will be its velocity in m/s?

If the velocity of a body does not change, then its acceleration is ________.

Light travels with a velocity 1.5xx10^(8)m//s in a medium. On entering 2^(nd) medium its velocity becomes 0.75xx10^(8)m//s . What is the refractive index of the 2^(nd) medium with respect to the first medium.

A body of mass m moving with velocity v collides head on with another body of mass 2m which is initially at rest. The ratio of K.E of colliding body before and after collision will be

Complete the following sentences. (a) The acceleration of the body that moves with a uniform velocity will be ____ (b)A train travels from A to station B with a velocity of 100 km/h and returns from station B to station A with a velocity of 80 km/h. Its average velocity during the whole journey in ____ and its average speed is ______

A car is moving with the initial velocity 15 m/s. Car stopped after 5s by application of breaks. Find the retardation (Decelaration).

SARAS PUBLICATION-GRAVITATION-EXAMPLE
  1. A particle moves in a circle of radius 5 cm with constant speed and ti...

    Text Solution

    |

  2. A planet moving along an elliptical orbit is closest to the Sun at dis...

    Text Solution

    |

  3. A body is moving with velocity 30m//s towards east .After 10 seconds i...

    Text Solution

    |

  4. The height at which the weight of a body becomes 1//16 th its weight o...

    Text Solution

    |

  5. A geostationary satellite is orbiting the earth at a height of 5R abov...

    Text Solution

    |

  6. A spherical planet has a mass M(p) and diameter D(p). A particle of ma...

    Text Solution

    |

  7. When a biconvex lens of glass having refractive index 1.47 is dipped i...

    Text Solution

    |

  8. An infinite number of bodies, each of mass 2 kg, are situated on at di...

    Text Solution

    |

  9. Calculate the ratio of radii of gyration of a circular ring and dise o...

    Text Solution

    |

  10. A planet has the radius twice that of earth and has same density as th...

    Text Solution

    |

  11. A particle of mass 'm' is kept at rest at a height 3R from the surface...

    Text Solution

    |

  12. The ratio of the acceleration for a solid sphere (mass m and radius R)...

    Text Solution

    |

  13. Dependence of intensity of gravitational field (E) of earth with dista...

    Text Solution

    |

  14. A remote- sensing satellite of earth revolves in a circular orbit at a...

    Text Solution

    |

  15. In double slit experiment ,the two slits are lmm apart and the screen ...

    Text Solution

    |

  16. Kepler's third law states that square of period of revolution (T)of a ...

    Text Solution

    |

  17. Two spherical bodies of mass M and 5M and radii R and 2R are released...

    Text Solution

    |

  18. At what height from the surface of Earth the gravitational potential a...

    Text Solution

    |

  19. The ratio of escape velocity at earth (ve) to the escape velocity at a...

    Text Solution

    |

  20. Plank's constant (h), speed of light in vacuum (c) and Newton's gravi...

    Text Solution

    |