Home
Class 11
PHYSICS
The distance covered by an object (in me...

The distance covered by an object (in meter) is given by
`s=8 t^(3)-7t^(2)+5t`
Find its speed at t = 2 s.

Text Solution

AI Generated Solution

To find the speed of the object at \( t = 2 \) seconds, we will follow these steps: ### Step 1: Write down the distance equation The distance covered by the object is given by the equation: \[ s = 8t^3 - 7t^2 + 5t \] ...
Promotional Banner

Topper's Solved these Questions

  • MOTION IN A PLANE

    DC PANDEY ENGLISH|Exercise Check point 3.1|10 Videos
  • MOTION IN A PLANE

    DC PANDEY ENGLISH|Exercise Check point 3.2|10 Videos
  • MOTION

    DC PANDEY ENGLISH|Exercise Medical entrances gallery|19 Videos
  • PROJECTILE MOTION

    DC PANDEY ENGLISH|Exercise Level - 2 Subjective|10 Videos

Similar Questions

Explore conceptually related problems

A particle is moving in a straight line such that the distance covered by it in t seconds from a point is ((t^(3))/(3)-t) cm. find its speed at t=3 seconds.

The distance travelled by a particle in time t is given by s=(2.5m/s^2)t^2 . Find a. the average speed of the particle during the time 0 to 5.0 s, and b. the instantaneous speed ast t=5.0 is

The distance s of a particle in time t is given by s=t^3-6t^2-4t-8 . Its acceleration vanishes at t=

The velocity of an object is given by vecv = ( 6 t^(3) hati + t^(2) hatj) m//s . Find the acceleration at t = 2s.

The velocity of an object is given by vecv = ( 6 t^(3) hati + t^(2) hatj) m//s) . Find the acceleration at t = 2s.

The height y and horizontal distance x covered by a projectile in a time t seconds are given by the equations y = 8t -5t^(2) and x = 6t. If x and y are measured in metres, the velocity of projection is

A particle moves along a straight line such that its displacement at any time t is given by s = 3t^(3)+7t^(2)+14t + 5 . The acceleration of the particle at t = 1s is

The position of an object is given by vecr= ( 9 thati + 4t^(3)hatj) m. find its velocity at time t= 1s.

A point object moves on a circular path such that distance covered by it is given by function S=(t^(2)/(2)+2t) meter ( t in second). The ratio of the magnitude of acceleration at t = 2 s and t = 5 s . is 1: 2 then the radius of the circle is

A particle moves in a circle of radius 20 cm. Its linear speed is given by v = (3t^(2) +5t) where t is in second and v is in m/s. Find the resultant acceleration at t = 1s.

DC PANDEY ENGLISH-MOTION IN A PLANE-(C )Medical entrances gallery
  1. The distance covered by an object (in meter) is given by s=8 t^(3)-7...

    Text Solution

    |

  2. If the velocity of a particle is v = At + Bt^2, where A and B are cons...

    Text Solution

    |

  3. A particle of unit mass undergoes one-dimensional motion such that its...

    Text Solution

    |

  4. The ball is dropped from a bridge 122.5 m above a river, After the ba...

    Text Solution

    |

  5. A ball is thrown vertically upwards from the ground with a speed of 25...

    Text Solution

    |

  6. A particle moves in an XY-plane in such a way that its x and y-coordin...

    Text Solution

    |

  7. A point moving with constant acceleration from A to B in the straight ...

    Text Solution

    |

  8. The displacement-time graph of a particle is as shown below. It indica...

    Text Solution

    |

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

    Text Solution

    |

  10. The velocity - time graph for two bodies A and B are shown in figure. ...

    Text Solution

    |

  11. A particle is moving such that its position coordinates (x, y) are (2m...

    Text Solution

    |

  12. A ball thrown vertically upwards after reaching a maximum height h ret...

    Text Solution

    |

  13. A police jeep is chasing with, velocity of 45 km//h a thief in another...

    Text Solution

    |

  14. A particle moves with constant acceleration along a straight line stre...

    Text Solution

    |

  15. A car covers the first half of the distance between two places at a sp...

    Text Solution

    |

  16. A particle starts moving from rest under uniform acceleration it trave...

    Text Solution

    |

  17. At time t = 0, two bodies A and B at the same point. A moves with cons...

    Text Solution

    |

  18. A motorclist drives from A to B with a uniform speed of 30 kmh^(-1) an...

    Text Solution

    |

  19. A body starts from rest and moves with constant acceleration for t s....

    Text Solution

    |

  20. The acceleration of a moving body can be found from

    Text Solution

    |

  21. A stone falls freely under gravity. It covered distances h1, h2 and h3...

    Text Solution

    |