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Height of the body from the ground can b...

Height of the body from the ground can be calculated by using the formula `h=-ut+(1//2)gt^(2)` in
(a) A body projected vertically with velocity in .t. sec.
(b) A body dropped from a ballon moving up with uniform velocity, reahces the ground in .t. sec.

(c) A body dropped from a helicopter moving upwith uniform velocity, reaches the ground in .t. sec.
(d) A body projected vertically from the ground reaches the ground in .t. sec.

A

a, b and c are correct

B

a, b, c and d are correct

C

a is only correct

D

b and d are correct

Text Solution

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The correct Answer is:
A
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Height of the body from the ground can be calculated by using the formula h=-"gt"+(1//2)"gt"^(2) in a)A body projected vertically with velocity 'u' from the top of tower,reaches the ground in 't' sec. b)A body dropped from a balloon moving up with uniform velocity,reaches the grounf in 't' sec c)A body dropped from a helicopter moving up with uniform velocity ,reaches the ground in 't' sec d)A body projected vertically from the ground reaches the ground in 't' sec.

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Knowledge Check

  • Height of the body from the ground can be calculated by using the formula h=-ut+(1//2)g t^(2) in a) A body projected vertically with velocity 'u' from the top of tower, reaches the ground in 't' sec. b) A body dropped from a balloon moving up with uniform velocity, reaches the ground in 't' sec c) A body dropped from a helicopter moving up with uniform velocity, reaches the ground in 't' sec d) A body projected vertically from the ground reaches the ground in 't' sec.

    A
    a, b and c are correct
    B
    a, b, c and d are correct
    C
    a is only correct
    D
    b and d are correct

  • Height of the body from the ground can be calculated by using the formula h=-ut+(1//2)g t^(2) in a) A body projected vertically with velocity 'u' from the top of tower, reaches the ground in 't' sec. b) A body dropped from a balloon moving up with uniform velocity, reaches the ground in 't' sec c) A body dropped from a helicopter moving up with uniform velocity, reaches the ground in 't' sec d) A body projected vertically from the ground reaches the ground in 't' sec.

    A
    a, b and c are correct
    B
    a, b, c and d are correct
    C
    a is only correct
    D
    b and d are correct

  • Height of the body from the ground can be calculated by using the formula h=-ut+(1//2)^(g t^2) in (a) A body projected vertically with velocity 'u' from the top of tower, reaches the ground in 't' sec. ( b) A body dropped from a balloon moving up with uniform velocity, reaches the ground in 't' sec (c) A body dropped from a helicopter moving up with uniform velocity, reaches the ground in 't' sec (d) A body projected vertically from the ground reaches the ground in 't' sec.

    A
    a, b and c are correct
    B
    a, b, c and d are correct
    C
    a is only correct
    D
    b and d are correct

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