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(A): Time taken by the bomb to reach the...

(A): Time taken by the bomb to reach the ground from a moving aeroplane depends on height of aeroplane only
(R): Horizontal component of velocity of bomb remains constant and vertical component of velocity of bomb changes due to gravity.

A

Both (A) and (R) are true and (R) is the correct explanation of (A)

B

Both (A) and (R) are true and (R) is not the correct explanation of (A)

C

(A) is true but (R) is false

D

Both (A) and (R) are fals

Text Solution

Verified by Experts

The correct Answer is:
B
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(A): If a bomb is dropped from an acroplane moving horizontally with constant velocity then the bomb appears to move along a vertical straight line for the pilot of the plane. (R): If a bomb is dropped from an aeroplane moving horizontally with constant velocity then horizontal component of velocity of the bomb remains constant and same as the velocity of the plane during the motion under gravity

A body is projected horizontally from the top of a tower with a velocity of 20 m/s. After what time the vertical component of velocity is four times the horizontal component of velocity ? (g = 10 m//s^(2) )

(A): When a body is dropped or thrown hori zontally from the same height, it would reach the ground at the same time. (R): Horizontal velocity has no effect on the vertical direction.