Answer to Question #122407 in Physics for jacob

Question

In the figure here, a solid brass ball of mass 0.284 g will roll smoothly along a loop-the-loop track when released from rest along the straight section. The circular loop has radius R = 0.15 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?

Answer 1

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