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2.Motion in Straight Line
easy
$Assertion$ : Two balls of different masses are thrown vertically upward with same speed. They will pass through their point of projection in the downward direction with the same speed.
$Reason$ : The maximum height and downward velocity attained at the point of projection are independent of the mass of the ball
A
If both Assertion and Reason are correct and the Reason is a correct explanation of the Assertion.
B
If both Assertion and Reason are correct but Reason is not a correct explanation of the Assertion.
C
If the Assertion is correct but Reason is incorrect.
D
If both the Assertion and Reason are incorrect.
(AIIMS-2013)
Solution
$h = ut – \frac{1}{2}g{t^2}$ and ${v^2} = {u^2} – 2gh;$ These equations are independent of mass
Standard 11
Physics
