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A body of mass 2 kg is projected vertica...

A body of mass 2 kg is projected vertically upward with a velocity of `2msec^(-1)`. The K.E. of the body just before striking the ground is

A

2J

B

1 J

C

4 J

D

8 J

Text Solution

Verified by Experts

The correct Answer is:
C
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Knowledge Check

  • A body of mass 2kg is projected vertically up with velocity 5ms^(-1) . The work done on the body by gravitational force before it is brought to rest momentarily is

    A
    `250 J`
    B
    `25J`
    C
    `0J`
    D
    `-25 J`

  • A body of mass 50 kg is projected vertically upward with velocity of 100 m//s . After 5 s this body breaks into 20 kg and 30 kg . If the 20 kg piece travels upwards with 150 m//s , then the velocity of other block will be

    A
    `15 m//s` downwards
    B
    `15 m//s` upward
    C
    `51 m//s` downwards
    D
    `50//3 m//s` downwards

  • A body of mass 2kg is projected vertically upwards with a speed of 3m//s . The maximum gravitational potential energy of the body is :

    A
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    B
    4.5 J
    C
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    D
    2.25 J

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