Physics, 23.11.2019 04:31 lexieprochaskaaa
One end of a string is attached to a ball, with the other end held by a student such that the ball is swung in a horizontal circular path of radius r at a constant tangential speed. at a later time, the tension force exerted on the ball remains constant, but the length of the string is decreased to r4. what is the new tangential speed of the ball?
a. four times the original speed
b. two times the original speed
c. half the original speed
d. one-fourth the original speed
Answers: 1
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One end of a string is attached to a ball, with the other end held by a student such that the ball i...
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