Home
Class 11
PHYSICS
If X = at + bt^2 , where X is distance t...

If X = at + `bt^2` , where X is distance travelled by a body in km while t is time in second. The unit of b is

A

`kms^-1`

B

`kms^-2`

C

kms

D

`kms^2`

Text Solution

Verified by Experts

The correct Answer is:
B
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS - 1

    BINA LIBRARY|Exercise EXERCISE|67 Videos
  • KINEMATICS-II

    BINA LIBRARY|Exercise EXERCISE|55 Videos

Similar Questions

Explore conceptually related problems

The motion of a particle along x-axis is given by equation x = 9+ 5t^2 , where x is the distance in cm and t is time in second. Find the displacement after 3 seconds.

If the distance travelled by a body is x and its displacement is y, which one is not correct?

The distances travelled by a body falling freely from rest in the 1st, 2nd and 3rd seconds are in the ratio.

The motion of a particle along x-axis is given by equation x = 9+ 5t^2 , where x is the distance in cm and t is time in second. Find instantaneous velocity after 3 seconds

The motion of a particle along x-axis is given by equation x = 9+ 5t^2 , where x is the distance in cm and t is time in second. Find average velocity during the interval from 3 to 5 seconds

Write down the relation between speed, distance travelled by the body and time taken.

A particle moves along a straight line according to x = Pt^2 + 2qt + r where x is the distance travelled in time t and p, q and r are constants. Find an expression for the acceleration of the particle.

A body starts from rest. The ratio of the distances travelled by it during the 4th and 3rd second is

A tuning fork oscillates 350 times in second. What is the distance travelled by the sound wave emitted by the tuning fork after its 5 oscillation. The speed of sound in air is 350 m/s

Draw the graphs for the following tables of values, with suitable scales on the axes. Distance travelled by a car What was the time when the car had covered a distance of 100 km since it's start?

BINA LIBRARY-KINEMATICS - 1-EXERCISE
  1. A stone dropped into a lake form a tower 500 m high. The sound of spla...

    Text Solution

    |

  2. The velocity of a body depends on time according to v = 20 + 0.1t^2 . ...

    Text Solution

    |

  3. If X = at + bt^2 , where X is distance travelled by a body in km while...

    Text Solution

    |

  4. The equation sqrtx = t+9 gives the variation of displacement with time...

    Text Solution

    |

  5. A body starts from rest. The ratio of the distances travelled by it du...

    Text Solution

    |

  6. A body is released from a height and falls freely. Another body is rel...

    Text Solution

    |

  7. A body dropped from a height h with an initial speed zero reaches the ...

    Text Solution

    |

  8. Water drops fall at regular intervals from a tap, which is 5 m above t...

    Text Solution

    |

  9. A train 150 m in length is moving north at a speed of 10m/s. A parrot ...

    Text Solution

    |

  10. For a body moving along a straight line, the average velocity is equal...

    Text Solution

    |

  11. If the time-displacement graph of a particle is parallel to time-axis,...

    Text Solution

    |

  12. When a particle is moving with uniform velocity which of the following...

    Text Solution

    |

  13. The distance covered by a body moving along a straight line is proport...

    Text Solution

    |

  14. If a body starts from rest and travels 1.2 m in 8th second , then acce...

    Text Solution

    |

  15. The equation sqrtx = t+9 gives the variation of displacement with time...

    Text Solution

    |

  16. If X = at + bt^2 , where X is distance travelled by a body in km while...

    Text Solution

    |

  17. A body is released from the top of a tower of height h meters. It take...

    Text Solution

    |

  18. The distances travelled by a body falling freely from rest in the 1st,...

    Text Solution

    |

  19. An object is projected upward with a velocity of 100ms^-1 . It will st...

    Text Solution

    |

  20. A particle is moving eastward with a velocity of 5ms^-1 in 10s, the ve...

    Text Solution

    |