Home
Class 11
PHYSICS
A particle starts from rest at t=0 and ...

A particle starts from rest at t=0 and moves in a straight line with acceleration as shown below. The velocity of the particle at t = 3 s is

A

`2ms^(-1)`

B

`4ms^(-1)`

C

`6ms^(-1)`

D

`8ms^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
B
Velocity = area under t a graph
`rArr 4 xx 1.5 - 2 xx 1 = 4m//s`
Promotional Banner

Topper's Solved these Questions

  • MOTION IN ONE DIMENSION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (RELATIVE MOTION )|18 Videos

  • MOTION IN ONE DIMENSION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (MOTION UNDER GRAVITY )|56 Videos

  • MOTION IN ONE DIMENSION

    ERRORLESS|Exercise NCERT BASED QUESTIONS (UNIFORM MOTION )|24 Videos

  • KINETIC THEORY OF GASES

    ERRORLESS|Exercise ASSERTION AND REASON |16 Videos

  • MOTION IN TWO DIMENSION

    ERRORLESS|Exercise ASSERTION & REASON|19 Videos

Similar Questions

Explore conceptually related problems

A particle starts from rest at t=0 and moves in a straight line with an acceleration as shown below. The velocity of the particle at t=3 s is

A particle starts motion from rest and moves along a straight line. Its acceleration-time graph is shown. Find out speed of particle at t=2s and at t=3s .

A particle starts motion from rest and moves along a straight line. Its acceleration-time graph is shown. Find out speed of particle at t=2s and at t=3s.

A particle starts from rest and moves with an acceleration of a={2+|t-2|}m//s^(2) The velocity of the particle at t=4 sec is

A particle starting from rest moves in a straight line with acceleration as shown in the a-t graph. Find the distance (in m) travelled by the particle in the first four seconds from start of its motion. Q

A particle starts moving from rest on a straight line. Its acceleration a verses time t is shown in the figure. The speed of the particle is maximum at the instant

A particle starts from rest at t=0 and moves along a straight line with a variable acceleration given by a (t)=(3t+1)ms^(-2) ,where t],[ is in seconds.The velocity of the particle at t=4s is

The acceleration after t seconds of a particle which starts from rest and moves in a straight line is (8-t/5)cm/s^2 . Find the velocity of the particle when the acceleration is zero.

ERRORLESS-MOTION IN ONE DIMENSION-NCERT BASED QUESTIONS (NON-UNIFORM MOTION )
  1. A bullet emerges from a barrel of length 1.2 m with a speed of 640 ms^...

    Text Solution

    |

  2. Two boys are standing at the ends A and B of a ground, where AB=a. The...

    Text Solution

    |

  3. A particle starts from rest at t=0 and moves in a straight line with ...

    Text Solution

    |

  4. A car starts from rest and accelerates uniformly to a speed of 180 kmh...

    Text Solution

    |

  5. What determines the nature of the path followed by the particle

    Text Solution

    |

  6. A ball is hung by a string from the ceiling of a car moving on a strai...

    Text Solution

    |

  7. If a car at rest, accelerates uniformly to a speed of 144 km//h in 20s...

    Text Solution

    |

  8. If a train travelling at 72 km/h is to be brought to rest in a distanc...

    Text Solution

    |

  9. Acceleration of a particle changes when

    Text Solution

    |

  10. The average velocity of a body moving with uniform acceleration after ...

    Text Solution

    |

  11. . A bullet moving with a velocity of 200 cm / s penetrates a wooden b...

    Text Solution

    |

  12. The position of a particle moving along the x-axis at certain times is...

    Text Solution

    |

  13. consider the acceleration velocity and displacement of a tennis ball a...

    Text Solution

    |

  14. A body is moving with uniform acceleration describes 40 m in the first...

    Text Solution

    |

  15. A body of 5kg is moving with a velocity of 20m/s. If a force of 100N i...

    Text Solution

    |

  16. The path of a particle moving under the influence of a force fixed in ...

    Text Solution

    |

  17. A body A moves with a uniform acceleration a and zero initial velocity...

    Text Solution

    |

  18. vvisermathnewFlow

    Text Solution

    |

  19. A body moves with initial velocity 10 ms^(-1) , If it covers a distan...

    Text Solution

    |

  20. A person throws balls into the air one after the other at an interval ...

    Text Solution

    |