Physics #9 9. The force that ultimately lifts a basketball player upwards off the court in a slam-dunkjump is the:a. applied forceb. tensionc. torqued. normal force

When the player performs this jump, the following happens:The player muscles apply a force on the…

Answered: 9. The force that ultimately lifts a…

University Physics Volume 1

18th Edition

ISBN:9781938168277

Author:William Moebs, Samuel J. Ling, Jeff Sanny

Publisher:William Moebs, Samuel J. Ling, Jeff Sanny

Chapter10: Fixed-axis Rotation

Section: Chapter Questions

Problem 51P: A child with mass 40 kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of...

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A child with mass 40 kg sits on the edge of a merry-go-round at a distance of 3.0 m from its axis of rotation. The merry-go-round accelerates from rest up to 0.4 rev/s in 10 s. If the coefficient of static friction between the child and the surface of the merry-go-round is 0.6, does the child fall off before 5 s?
As a skater forms a circle, what force is responsible for making her turn? Use a free body diagram in your answer.
Suppose just two external forces act on a stationary, rigid object and the two forces are equal in magnitude and opposite in direction. Under what condition does the object start to rotate?
Give an example in which anal forte exerts a large torque. Give another example in which a large force exerts a small torque.
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Part of riding a bicycle involves leaning at the correct angle when making a turn, as seen below. To be stable, the force exerted by the ground must be on a line going through the center of gravity. The force on the bicycle wheel can be resolved into two perpendicular components—friction parallel to the road (this must supply the centripetal force) and the vertical normal force (which must equal the system’s weight). (a) Show that (as defined as shown) is related to the speed vand radius of curvature rof the turn in the same way as for an ideally banked roadway—that is, =tan1(v2/rg) . (b) Calculate for a 12.0-m/s turn of radius 30.0 m (as in a race).
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9. The force that ultimately lifts a basketball player upwards off the court in a slam-dunk jump is the: a. applied force b. tension c. torque d. normal force