Sample Problem Force And Motion 11

Sample Problem Force And Motion 11

In a 1901 circus performance, All Dare Devil Dialog introduced the stunt of riding a bicycle in a loop-the-loop . As sum in that the loop is a circle with radius .

SOLUTION: A Key Idea in analyzing Diavolo’ s stunt is to assume that he and his bicycle travel through the top of the loop as a single particle in uniform circular motion.

Another Key Idea is that if the particle has the least speed y needed to remain in contact, then it is on the verge of losing contact with the loop (falling away from the loop),

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Diavolo made certain that his speed at the top of the loop was normal force N;(m you (from the always upright seat) as you greater than 5.1 m/s so that he did not lose contact with the loop ‘pass through (a) the highest point and (b) the lowest point and fall away from it.

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(a) Contemporary advertisement for Diavolo and (b) free-body diagram for the performer at the top of the loo
(a) Contemporary
advertisement for Diavolo and
(b) free-body diagram for the performer
at the top of the loop.

CHECKPOINT 4: When you ride in a Ferris wheel at constant speed, what are the directions of your acceleration  and the normal force N;(m you (from the always upright seat) as you pass through (a) the highest point and (b) the lowest point of the ride?

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