Home
Class 11
PHYSICS
Find the average acceleration in first 2...

Find the average acceleration in first `20 s`. (Hint: Area under `a-t` graph is equal to the change in velocity).
.

Text Solution

Verified by Experts

Let us first find the charge in velocity Change in velcity is the area under the acceleration=time graph. For first `20 s`,
Area `=Delta v (1)/(2) xx10 xx20+10xx20 =300 ms^(-1)`
Average acceleration `=(Delta v)/(Delta t) =(300)/(20) =15 ms^(-2)`.
Promotional Banner

Topper's Solved these Questions

  • KINEMATICS-1

    CENGAGE PHYSICS ENGLISH|Exercise Subjective|29 Videos

  • KINEMATICS-1

    CENGAGE PHYSICS ENGLISH|Exercise Single Correct|52 Videos

  • KINEMATICS-1

    CENGAGE PHYSICS ENGLISH|Exercise Exercise 4.3|15 Videos

  • GRAVITATION

    CENGAGE PHYSICS ENGLISH|Exercise INTEGER_TYPE|1 Videos

  • KINEMATICS-2

    CENGAGE PHYSICS ENGLISH|Exercise Exercise Integer|9 Videos

Similar Questions

Explore conceptually related problems

Statement-I : When velocity of a particle is zero then acceleration of particle is zero. Statement-II : Acceleration is equal to rate of change of velocity.

The velocity-time graph of a particle moving along a straight line is shown is Fing. The rate of acceleration and deceleration is constant and it is equal to 5 m s^(-2) . If the a average velocity during the motion is 20 m s^(-1) , Then . The distace travelled with uniform velcoty is .

The area under acceleration-time graph gives

The area under acceleration-time graph gives

The velocity-time graph of a particle moving along a straight line is shown is . The rate of acceleration and deceleration is constant and it is equal to 5 m s^(-2) . If the a average velocity during the motion is 20 m s^(-1) , Then . The value of t is.

The velocity-time graph of a particle moving along a straight line is shown is Fig. The rate of acceleration and deceleration is constant and it is equal to 5 m s^(-2) . If the a average velocity during the motion is 20 m s^(-1) , Then . The maximum velocity of the particle is .

The velocity-time graph of a particle moving along a straight line is shown is Fig. The rate of acceleration and deceleration is constant and it is equal to 5 m s^(-2) . If the a average velocity during the motion is 20 m s^(-1) , Then . The maximum velocity of the particle is .

velocity-time graph of a particle moving in a straight line is as shown in figure. At time t = 0, velocity of the particle is zero. Find (a) average acceleration in a time interval from t = 6 s to t = 12 s, (b) velocity of the particle at t = 14 s.

Assertion : In the s-t graph as shown in figure, velocity of particle is negative and acceleration is positive. Reason : Slope of s-t graph is negative and increasing in magnitude.

For Question , find maximum velocity and maximum acceleration Hint : Maximum velocity = Aomega Maximum acceleration = A omega^(2) A particle executes SHM on a straight line path. The amplitude of oscillation is 3cm . magnitude of its acceleration is equal to that of its velocity when its displacement from the mean position is 1cm.

CENGAGE PHYSICS ENGLISH-KINEMATICS-1-Exercise 4.4
  1. a. What can you say about velocity in each of the following position-t...

    Text Solution

    |

  2. a. A ball is thrown vertically upwards. Aftre some time it trturns to ...

    Text Solution

    |

  3. A body starts at t=0 with velcoity u and travels along a straight ling...

    Text Solution

    |

  4. Find the average acceleration in first 20 s. (Hint: Area under a-t gra...

    Text Solution

    |

  5. At t=0, a particle starts from reat and moves along a straight line, w...

    Text Solution

    |

  6. Given below shows the desplacemen-time graph for a particle moving alo...

    Text Solution

    |

  7. You are given the position-time graph of three deffernt bodies A,B, an...

    Text Solution

    |

  8. A physics professor leaves her house and walks along the sidewalk towa...

    Text Solution

    |

  9. Shows the position-time graphs of three cars A,B and C On the basis of...

    Text Solution

    |

  10. A cockroach moves rectilinearly such that after sometime t(0) let its ...

    Text Solution

    |

  11. A car accelerates from rest at a constant rate alpha for some time, af...

    Text Solution

    |

  12. Two cars, A and B move along the x-axis. Car A starts from rest with c...

    Text Solution

    |

  13. A rigid ball traveling in a straight line the x-axis hits a soled wall...

    Text Solution

    |

  14. Refering to v-s diagram, find: . a. Acceleration of the particle w...

    Text Solution

    |

  15. A racing motor boat speeds up in a straight line in a lake, from rest....

    Text Solution

    |

  16. Referring a-s diagram in the figure , find the velocity after particle...

    Text Solution

    |