nathrontheking
16.01.2020 •
Physics
Abowler throws a bowling ball of radius r = 11 cm along a lane. the ball slides on the lane with initial speed vcom,0 = 6.0 m/s and initial angular speed ω0 = 0. the coefficient of kinetic friction between the ball and the lane is 0.35. the kinetic frictional force f with arrowk acting on the ball causes a linear acceleration of the ball while producing a torque that causes an angular acceleration of the ball. when speed vcom has decreased enough and angular speed ω has increased enough, the ball stops sliding and then rolls smoothly.(a) what then isvinterms ofω? (b) during the sliding, what are the ball’s translational and angularacceleration? (c) how far does the ball slide?
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Ответ:
Explanation:
Radius of the ball is
Initial speed of the ball is
Initial angular speed of the ball is
Coefficient of kinetic friction between the ball and the lane
is
Due to the presence of frictional force, ball moves with
decreasing velocity.
(a)
velocity in terms of is
(b)
Ball's linear acceleration is given by
(c)
During sliding, ball's angular acceleration is calculated as
(d)
The time for which the ball slides is calculated from the
equation of motion is
(e)
Distance traveled by the ball is
(for)
The speed of the ball when smooth rolling begins is
Ответ:
Please see attachment
Explanation:
Please see attachment
Ответ: