In the figure here, a solid brass ball of mass 0.248 g will roll smoothly along a loop-the-loop track when released from rest along the straight section. The circular loop has radius R = 0.2 m, and the ball has radius r << R. a) What is h if the ball is on the verge of leaving the track when it reaches the top of the loop? (b) If the ball is released at height h = 7R, what is the magnitude of the horizontal force component acting on the ball at point Q?
In the figure here, a solid brass ball of mass 0.248 g will roll smoothly along a loop-the-loop track when released from rest along the straight section. The circular loop has radius R = 0.2 m, and the ball has radius r << R. a) What is h if the ball is on the verge of leaving the track when it reaches the top of the loop? (b) If the ball is released at height h = 7R, what is the magnitude of the horizontal force component acting on the ball at point Q?
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Transcribed Image Text:In the figure here, a solid brass ball of mass 0.248 g
will roll smoothly along a loop-the-loop track when
released from rest along the straight section. The
circular loop has radius R = 0.2 m, and the ball has
radius r << R.
(a) What is h if the ball is on the verge of leaving the
track when it reaches the top of the loop?
(b) If the ball is released at height h = 7R, what is the
magnitude of the horizontal force component acting
on the ball at point Q?
(a) h =
Mi
(b) F=
i
(>
(>
R
12
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