A discus thrower is spinning in a circle of radius 1.6m. The maximum force her arm can exert is 2200N. How long will it take for her to complete one spin? The mass of the discus is 1.75kg.

University Physics Volume 1
18th Edition
ISBN:9781938168277
Author:William Moebs, Samuel J. Ling, Jeff Sanny
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Chapter6: Applications Of Newton's Laws
Section: Chapter Questions
Problem 72P: Modem roller coasters have vertical loops like the one shown here. The radius of curvature is...
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A discus thrower is spinning in a circle of radius 1.6m. The
maximum force her arm can exert is 2200N. How long will it take for
her to complete one spin? The mass of the discus is 1.75kg.

 

During a freak snow storm a banked curve (18°) with a radius of
85m is covered with frictionless ice. A car approaches this curve at
a speed of 19m/s. Will the car stay in the curve, fall into the curve
or slide out of the curve. Show the math of your answer.

 

 

 

need help with homework pls

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