Home
Class 6
PHYSICS
Find the acceleration of the car, if it ...

Find the acceleration of the car, if it changes its velocity from `20 m s^(-1)` to `30 ms^(-1)` in 5 seconds.

Text Solution

Verified by Experts

The correct Answer is:
`2 m s^(-2)`

`a=(v-u)/(t)`
`a=(30-20)/(5)=2`
`a=2 m s^(-2)`
Promotional Banner

Topper's Solved these Questions

  • MEASUREMENTS AND MOTION

    PEARSON IIT JEE FOUNDATION|Exercise concept|5 Videos
  • MEASUREMENTS AND MOTION

    PEARSON IIT JEE FOUNDATION|Exercise Test 1|13 Videos
  • MEASUREMENTS AND MOTION

    PEARSON IIT JEE FOUNDATION|Exercise Very Short Answer Questions|45 Videos
  • LIGHT

    PEARSON IIT JEE FOUNDATION|Exercise ASSESSMENT TEST (CROSS WORD )|11 Videos
  • MOVEMENT - AN AMAZING ACTIVITY

    PEARSON IIT JEE FOUNDATION|Exercise CROSSWORD|1 Videos

Similar Questions

Explore conceptually related problems

What force should be applied on a body of mass 500 kg to change its velocity from 4 ms^(1) to 6 ms^(-1) in one second ?

A particle moves in a straight line with a constant acceleration. It changes its velocity from 10 ms^-1 to 20 ms^-1 while passing through a distance 135 m in t seconds. The value of t is.

What force will change the velocity of a body of mass 1 kg from 20 ms^(-1) to 30 ms^(-1) in two seconds?

A particle moves in a straight line with a constant acceleration.It changes its velocity from 10m/s to 20m/s while covering a distance of 135m in t second.What is the value of t?

Certain force acting on a 20 kg mass changes its velocity from 5ms ^-1 to 2ms^-1 . Calculate the work done by the force.

A car drive accelerates the car to increase its speed from 30 km h^(-1) to 60 km h^(-1) in 5 min. Arrage the following steps a sequence to obtain the acceleration of the car. (A) Use the formula , rate of change of velocity = (" Total change in veclocity")/("Total time required for change") (B) Obtain the final velocity (v) , of the car. (C) Find the time taken to increase the speed of the car from u to v let it be 't' (D) find the initial velocity (u) of the car. (E) Substitute the values in the formula and calulate the acceleration of the car.

The speed of a car changes from 0 to 5 ms^(-1) in the first phase and from 5 ms^(-1) to 10 ms^(-1) in the second phase and from 10 ms^(-1) to 15 ms^(-1) during the third phase. In which phase the increase in kinetic energy is more ?

PEARSON IIT JEE FOUNDATION-MEASUREMENTS AND MOTION-Short Answer Type Questions
  1. Match the following. {:(,"Column A",,,"Column B"),((A),"Kelvin","(...

    Text Solution

    |

  2. Assertion (A): Temperature is a fundamental quantity in SI system. R...

    Text Solution

    |

  3. Write the following steps in a sequential order to find the time at a ...

    Text Solution

    |

  4. Raju started a piece of work when the hours hand and minutes hand in a...

    Text Solution

    |

  5. Keshav observed that the increase in the temperature of a body is give...

    Text Solution

    |

  6. Define rest.

    Text Solution

    |

  7. Define motion, What do you understand by the terms 'uniform motion' an...

    Text Solution

    |

  8. Define displacement.

    Text Solution

    |

  9. Define velocty.

    Text Solution

    |

  10. Define acceleration.

    Text Solution

    |

  11. How can you differentiate between distance and displacement?

    Text Solution

    |

  12. If the distance covered by a body moving in a circular path of radius ...

    Text Solution

    |

  13. How can you say that speed and velocity are different even through the...

    Text Solution

    |

  14. How can you say that the tree on the earth is in a state of rest and i...

    Text Solution

    |

  15. Give any one example in which a body travels with retardation and give...

    Text Solution

    |

  16. A particle is movingin circular path of radius 7 cm. Find the ratio of...

    Text Solution

    |

  17. Find the minimum speed required by a person standing 5 m behind a bus,...

    Text Solution

    |

  18. If a bus moves from A to B and comes back to A, find the displacement ...

    Text Solution

    |

  19. What is the speed of a body if it covers a distance of 20 m in 4 secon...

    Text Solution

    |

  20. Find the acceleration of the car, if it changes its velocity from 20 m...

    Text Solution

    |