(6%) Problem 7: When we study the interaction of a baseball with a bat, we frequ
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(6%) Problem 7: When we study the interaction of a baseball with a bat, we frequently ignore the action of gravity on the ball Since gravity 1s an external force to the ball-bat system, it would seem that momentum is not actually conserved during this interaction Which of the following statements are correct about this situation (select all that apply)? Grade Summary Deductions Potential Defining systems is arbitrary and we have isolated gravity from this case External forces cannot change the momentum of an system The internal forces cancel out the external forces of gravity The internal forces are much greater than the external forces Then the total momentum after the collision is approximately the same as it was before 0% 100% Submissions Attempts remaining:4 % per attempt) detailed view the collision 0% 0% 0% Submit Hint Feedback I give up! Hints: 2% deduction per hint. Hints remaining: 1 Feedback: 2% deduction per feedback. Submission History Answer Hints Totals 0% Feedback Note: Feedback not accessed Note: Feedback not accessed Note: Feedback not accessed 1 The internal forces cancel out the external forces of gravity., Then the total momentum after the 0% 0% 0% collision is approximately the same as it was before the collision 2Then the total momentum after the collision is approximately the same as it was before the 0% 0% 0% 0% collision 0% 0% 3Defining systems is arbitrary and we have isolated gravity from this casc., Then the total momentum after the collision is approximately the same as it was before the collision 0% 0% Totals 0% 0% 0% 0%Explanation / Answer
(i) defining systems is arbitrary and we have isolated gravity from this case.
gravity is constant always downwards which will not change with time so, when we apply the momentum conservation it will remain same initially and finally. so, we can say that there is no role of gravity in the collision.
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