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A body of mass 1 kg is moving with veloc...

A body of mass 1 kg is moving with velocity `30 ms^(-1)` due north. It is acted on by a force of 10 N due east for 4 seconds. Find the velocity of the body after the force ceases to act.

A

`50 m//s , tan^(-1) (3/4)`

B

`100 m//s , tan^(-1) (4/3)`

C

`50 m//s , tan^(1) (3/5)`

D

`100 m//s , tan^(-1) (4/5)`

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The correct Answer is:
A
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Knowledge Check

  • A body of mass 5 kg is moving with a velocity of 20 m/s. If a force of 100 N is applied on it for 10 s in the same direction as its velocity, what will be the velociy of the body ?

    A
    200 m/s
    B
    220 m/s
    C
    240 m/s
    D
    260 m/s

  • A body of mass 4 kg is moving with momentum of 8 kg m s^(-1) . A force of 0.2 N acts on it in the direction of motion of the body for 10 s. The increase in kinetic energy is

    A
    10 J
    B
    8.5 J
    C
    4.5 J
    D
    4 J
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