Two different balls are rolled (without slipping) toward a common finish line. Ball 1 has an angular speed of 23.7 rad/s, and ball 2 has an angular speed of w2 18.3 rad/s. The first ball, which has a radius of 0.0638 m, is rolling along a conveyor belt that is moving at 2.44 m/s and starts out 9.32 m from the finish line. The second ball has a radius of 0.0508 m and is rolling along the stationary floor. If the second ball starts out 5.54 m from the finish line, how long does each ball take to reach the finish line? 2 ball 1 ball 2: S What angular speed would the losing ball have needed to cross the finish line at the same time as the winning ball? angular speed: rad/s A 1140 kg car has just passed a diner. The closest the car came to the diner was R = 12.5 m, but the car has driven another 30.7 m in the 2.05 s elapsed since then. If the car travels at constant speed, what is the current magnitude of the angular momentum of the car about the diner? magnitude kg m2/s
Two different balls are rolled (without slipping) toward a common finish line. Ball 1 has an angular speed of 23.7 rad/s, and ball 2 has an angular speed of w2 18.3 rad/s. The first ball, which has a radius of 0.0638 m, is rolling along a conveyor belt that is moving at 2.44 m/s and starts out 9.32 m from the finish line. The second ball has a radius of 0.0508 m and is rolling along the stationary floor. If the second ball starts out 5.54 m from the finish line, how long does each ball take to reach the finish line? 2 ball 1 ball 2: S What angular speed would the losing ball have needed to cross the finish line at the same time as the winning ball? angular speed: rad/s A 1140 kg car has just passed a diner. The closest the car came to the diner was R = 12.5 m, but the car has driven another 30.7 m in the 2.05 s elapsed since then. If the car travels at constant speed, what is the current magnitude of the angular momentum of the car about the diner? magnitude kg m2/s
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Transcribed Image Text:Two different balls are rolled (without slipping) toward a
common finish line. Ball 1 has an angular speed of
23.7 rad/s, and ball 2 has an angular speed of
w2 18.3 rad/s. The first ball, which has a radius of
0.0638 m, is rolling along a conveyor belt that is moving at
2.44 m/s and starts out 9.32 m from the finish line. The
second ball has a radius of 0.0508 m and is rolling along the
stationary floor.
If the second ball starts out 5.54 m from the finish line, how
long does each ball take to reach the finish line?
2
ball 1
ball 2:
S
What angular speed would the losing ball have needed to
cross the finish line at the same time as the winning ball?
angular speed:
rad/s
Transcribed Image Text:A 1140 kg car has just passed a diner. The closest the car
came to the diner was R = 12.5 m, but the car has driven
another
30.7 m in the 2.05 s elapsed since then. If the
car travels at constant speed, what is the current magnitude
of the angular momentum of the car about the diner?
magnitude
kg m2/s
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