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A body starting from rest accelerates un...

A body starting from rest accelerates uniformly and attains a velocity of 20m/s in 30 seconds. Find its acceleration and the distance it covers in that time

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Knowledge Check

  • An object accelerates from rest to a velocity 27.5m/s in 10 secs, then find the distance covered by next 10s.

    A
    550m
    B
    137.5m
    C
    412.5m
    D
    275m

  • A body starting from rest , moves with uniform acceleration . The distance covered by the body in time is proportional to

    A
    `sqrt t `
    B
    `t^(2/3)`
    C
    `t^2`
    D
    `t^3`

  • A body starts from rest and acquires a velocity V in time T. The work done on the body in time t will be proportional to

    A
    `V/Text`
    B
    `V^2/text^2`
    C
    `V^2/T^2 xxt`
    D
    `V^2/T^2xxt^2`

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    A body moving with uniform acceleration describes 12m in the 3rd sec of its motion and 20m in the 5th second. Find the distance covered in the 10th second.

    The initial velocity of a car is 10m/s . It accelerates uniformly at 2m/s_2 for 20s and thereafter retards uniformly at 4m/s_2 . Find the total distance covered by the car before it comes to rest . For how much time the car is in motion ?

    A body moving with uniform acceleration covers 15m in the third second of its motion and 19.4 m in the fifth sec . If its acceleration and initial velocity.

    A particle is moving eastward eith velocity of 5 m/s . In 10 seconds, the velocity change to 5 m/s north wards. The average acceleration in this time

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