Home
Class 9
PHYSICS
Acceleration of a car in motion is 1.5 m...

Acceleration of a car in motion is `1.5 m s^(-2).` How much is the increase in velocity in 4s?

A

`6 ms^(-1)`

B

`4 ms ^(-1)`

C

`4 ms ^(-1)`

D

`2.66 ms ^(-1)`

Text Solution

Verified by Experts

The correct Answer is:
A
Acceleration`= ("Change in velocity")/("Time interval")`
`therefore` Change in velocity (increase)
= Acceleration `xx` Time interval
`= (1.5 ms ^(-2)) xx (4s)`
`=6 ms ^(-1)`
Promotional Banner

Topper's Solved these Questions

  • MOTION

    KUMAR PRAKASHAN|Exercise TRUE OR FALSE |30 Videos

  • MOTION

    KUMAR PRAKASHAN|Exercise QUESTION IN SHORT |18 Videos

  • MOTION

    KUMAR PRAKASHAN|Exercise QUESTION AND ANSWER |40 Videos

  • GRAVITATION

    KUMAR PRAKASHAN|Exercise ACTIVITY 10.4|2 Videos

  • QUESTION PAPER 01

    KUMAR PRAKASHAN|Exercise SECTION - D|5 Videos

Similar Questions

Explore conceptually related problems

A stone is throuwn in a vertically upward direction with a velocity of 5 ms ^(-1). If the acceleration of the stone during its motion is 10 ms ^(-2) in the downword direction, what will be the height attained by the stone and how much time will it take to reach there ?

A rod of 10 cm length is moving perpendicular to uniform magnetic field of intensity 5 xx 10^(-4) "Wb/m"^2 . If the acceleration of the rod is 5 "m/s"^2 , then the rate of increase of induced emf is ….

A block of mass 15 kg is placed on a long trolley. The coefficient of static friction between the block and the trolley is 0.18. The trolley accelerates from rest with 0.5 m s^(-2) for 20 s and then moves with uniform velocity. Discuss the motion of the block as viewed by (a) a stationary observer on the ground, (b) an observer moving with the trolley.

The velocity acquired by a body moving with uniformaccelertion is 30 m s^(-1) in 2s and 60 ms ^(-1) in 4 s , The initial velocity is .

The velocity of a particle moving with constant acceleration at an instant t_(0) is 10m//s After 5 seconds of that instant the velocity of the particle is 20m/s. The velocity at 3 second before t_(0) is:-

Starting from rest, the acceleration of a particle is a=2(t-1) . The velocity of the particle at t=5s is :-

A car from stationary state moves in positive X direction with constant acceleration 5 ms^(-2) for 8 s. Then it moves with constant velocity, then find the total distance covered by car after 12 s from the initial position.

The velocity of an object of mass 200 kg , performing unifrom acceleration motion , change from 5 m/s to 10 m/s in 6s then calculate the initial and final momentuum of this object.

A car acceleration from rest at a constant rate 2m//s^(2) for some time. Then, it retards at a constant rate of 4 m//s^(2) and comes to rest. If it remains motion for 3 second, then the maximum speed attained by the car is:-

KUMAR PRAKASHAN-MOTION -CHOOSE CORECT OPTION
  1. Velocity of a vehicle increases from 5ms to 15 ms^(-1) in 5 s. What i...

    Text Solution

    |

  2. Velocity-time graphs vehicle A for vehicles A and B are shown in figur...

    Text Solution

    |

  3. Acceleration of a car in motion is 1.5 m s^(-2). How much is the incre...

    Text Solution

    |

  4. For which physical quantity from the following, direction is not requi...

    Text Solution

    |

  5. When is it said that the object performs uniform motion?

    Text Solution

    |

  6. A person walks distance of 4 km from his home in the north direction. ...

    Text Solution

    |

  7. A vehicle covers certain distance at constant speed of 20 km h^(-1) in...

    Text Solution

    |

  8. What is acceleration?

    Text Solution

    |

  9. Which of the following relations is correct for a vehicle performing u...

    Text Solution

    |

  10. A graph of velocity versus time (v - t) for an object performing motio...

    Text Solution

    |

  11. What is constant for an object performing uniform circular motion ?

    Text Solution

    |

  12. What value is given by the area of a region surrounded below the graph...

    Text Solution

    |

  13. Velocity of a moving car goes on increasing with time. In which direct...

    Text Solution

    |

  14. A graph of velocity-time (v-t) for an object performing motion is show...

    Text Solution

    |

  15. Which of the following graphs represents uniform motion of an object ?

    Text Solution

    |

  16. Four motorcars A, B, C and D are moving on a road in the same directio...

    Text Solution

    |

  17. The speed-time graphs for three objects X, Y and Z are represented on ...

    Text Solution

    |

  18. A particle is moving on a circle of radius r. The displacement at the ...

    Text Solution

    |

  19. An object is thrown in vertical upward direction with velocity 'u' the...

    Text Solution

    |

  20. The numerical ratio of displacement to distance for a moving object is...

    Text Solution

    |