Question

Assertion : When a body is dropped or thrown horizontally from the same height, it would reach the ground at the same time.
Reason : Horizontal velocity has no effect on the vertical direction.

• A. If both Assertion and Reason are true and Reason is the correct explanation of Assertion
• B. If the Assertion and Reason are true but Reason is not correct explanation of Assertion
• C. If Assertion is true but, Reason is false
• D. If Assertion is false but, Reason is true

Answer 1

Answer: (A)

Both body will take same time to reach the earth because vertical downward component of velocity for both the bodies will be zero and time of decent $t=\sqrt{\frac{2 k}{g}}$, Horizontal velocity has no effect on the vertical direction.