Physics, 09.12.2019 18:31 dheydar3506
Abowling ball rolls with-out slipping up a ramp that slopes upward at an angle î² to the horizontal. treat the ball as a uniform solid sphere, ignoring the finger holes. (a) draw the free-body diagram for the ball. explain why the friction force must be directed uphill. (b) what is the acceleration of the center of mass of the ball? (c) what minimum coefficient of static friction is needed to prevent slipping?
Answers: 2
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Aparticle moves in the xy plane with constant acceleration. at time zero, the particle is at x = 6 m, y = 8.5 m, and has velocity ~vo = (9 m/s) ˆı + (−2.5 m/s) ˆ . the acceleration is given by ~a = (4.5 m/s 2 ) ˆı + (3 m/s 2 ) ˆ . what is the x component of velocity after 3.5 s? answer in units of m/s.
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In which item is energy stored in the form of gravitational potential energy? a. a slice of bread b. a compressed spring c. an apple on a tree d. a stretched bow string
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Abowling ball rolls with-out slipping up a ramp that slopes upward at an angle î² to the horizontal....
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