SSC
PHYSICS
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Question
[CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
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In the previous problem, which ball has the greater velocity at ground level?
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the “dropped” ball
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the “fired” ball
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neither-they both have the same velocity on impact
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it depends on how hard the ball was thrown
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Explanation:
Detailed explanation-1: -In the previous problem, which ball has the greater velocity at ground level? Both balls have the same vertical velocity when they hit the ground (since they are both acted on by gravity for the same time).
Detailed explanation-2: -Conclusion: The magnitude of the velocity of the ball is 26.3 m/s for the parabolic motion just before it hits the ground and this greater than the 17.1 m/s for the velocity of the ball that falls straight downward.
Detailed explanation-3: -Which ball hits the ground first? Both balls hit the ground at the same time. This is because the vertical motion is completely independent of the horizontal motion.
There is 1 question to complete.