Home
Class 11
PHYSICS
The position of an object moving along x...

The position of an object moving along x-axis is given by `x = a + bt^2` where `a = 8.5 m` and `b=2.5 m` and `t=0` is measured in second. If the object starts from `t = 0 (the velocity at `t=2s` is

A

18.5 m/s

B

10 m/s

C

9.25 m/s

D

1.5 m/s

Text Solution

Verified by Experts

Promotional Banner

Topper's Solved these Questions

  • MEASUREMENTS

    TARGET PUBLICATION|Exercise EVALUATION TEST|17 Videos

  • OPTICS

    TARGET PUBLICATION|Exercise EXERCISE|447 Videos

Similar Questions

Explore conceptually related problems

The position of an object movinfg along X-axis is given by x = a + bt^2 where a = 8.5 m and b = 2.5 m and t is measured in second. If the object starts from t = 0, the velocity at t = 2s is

The position of an object moving along the x axis is given by x = a + bt^2 where a = 8.5 and b= 2.5 m s^2 and t is measured in second. What is the velociity at t=0 s and t= 2s? What is the average velocity between t= 2 s and t=4s?

The velocity of an object moving in straight line path is given as a function of time by v = 6t - 3t^2 , where v is in ms^-1 , t is in s. The average velocity of the object between t=0 and t=2 second is

IF the equation for the displancement of a particle moving on a circular path is given by theta=2t^3+0.5 , where theta is in radius and t is in seconds, then the angular velocity of the particle at t=2 s is

The displacement of a particle along the x-axis is given by x = a sin^(2) omega t . The motion of the particle corresponds to

If x = at + bt^(2) where x is in meter (m) and t is in hour (hr) then unit of b will be .

The horizontal distance x and the vertical height y of a projectile at a time t are given by x=at and y=bt^2 +ct where a, b and c are constants The magnitude of the velocity of the projectile 1 second after it is fired is

A wave equation which gives the displacement along y-direction is given by y = 0.001 sin (100t + x) where x and y ane in meter and t is time in second. This represented a wave

The acceleration of a moving particle whose space time equation is given by s=3t^2+2t-5 , is: a)6 b)5 c)0 d)1

If the position vector of a body performing rectilinear motion is given by vecr = 3t^2hati + 4t^2hatj m. Find the velocity and acceleration of the particle at t= 1sec.

TARGET PUBLICATION-Motion in a plane-Exercise
  1. A body covers one-half of its journey at 40 m s^-1 and the next half ...

    Text Solution

    |

  2. A train covers the first half of the distance between two stations at ...

    Text Solution

    |

  3. The position of an object moving along x-axis is given by x = a + bt^2...

    Text Solution

    |

  4. An electron travelling with a speed of 5x 10^3 m/s passes through an e...

    Text Solution

    |

  5. An aeroplane takes off the ground after covering distance of 800 m of ...

    Text Solution

    |

  6. A bullet strikes a plank of thickness 5 cm with a velocity of 1000 m/s...

    Text Solution

    |

  7. A local train, travelling at 72 km/hr is brought to rest in 10 seconds...

    Text Solution

    |

  8. The v-t graph of an athlete is shown below. The distance travelled by ...

    Text Solution

    |

  9. A body projected vertically upwards with a velocity of u returns to th...

    Text Solution

    |

  10. A body released from rest to fall freely under gravity reaches the gro...

    Text Solution

    |

  11. A stone is thrown vertically upwards with initial velocity of 14 m s^-...

    Text Solution

    |

  12. A man swims relative to water with a velocity greater than velocity of...

    Text Solution

    |

  13. Two trains A and B are moving on parallel tracks with velocities 60 km...

    Text Solution

    |

  14. If a car travelling at 58 km/h overtakes another car travelling at 40 ...

    Text Solution

    |

  15. A thief is running away on a straight road in jeep moving with a speed...

    Text Solution

    |

  16. If a car travelling at 58 km/h overtakes another car travelling at 40 ...

    Text Solution

    |

  17. The two dimensional motion of a body in which a vertical motion with c...

    Text Solution

    |

  18. Which of the following is NOT an example of a projectile?

    Text Solution

    |

  19. The path followed by projectile is called

    Text Solution

    |

  20. While studying projectile motion

    Text Solution

    |