(Q-1) If you hold a ball above the floor, and then drop it, its downward velocit
ID: 2038170 • Letter: #
Question
(Q-1) If you hold a ball above the floor, and then drop it, its downward velocity increases until it hits the floor. As it is falling is its momentum in the downward direction increasing? Does the change in momentum of the object depend on the gravitational force and on the length of time it is falling?As the object is falling is it also exerting an equal but opposite (upward) force on the earth? the same length of time that the earth is pulling on the object?As the object is falling how does its change in momentum compare to the change in momentum of the earth? Is this force of the object on the earth being exerted forExplanation / Answer
Q-1) Yes, the momentum increases, because the ball accelerates due to gravity as it moves down.
Yes, the increase in speed occurs due to gravity and ball accelerates as long as it remains in downwards motion, ie duration of flight.
Yes, the object exerts equal and opposite force, i.e. Force due to gravity on earth.
Yes, the force is exerted for the equal duration.
Change is momentum of the earth is equal to the change is momentum of the object in terms of magnitude, however earth is so massive that there is no change in speed of the earth. Hence we cannot observe it.
Related Questions
Navigate
Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.