Homework Clinic
Science Clinic => Physics => Topic started by: cmoore54 on Jul 29, 2018
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A bowling ball of mass 7.5 kg and radius 9.0 cm rolls without slipping 10 m down a lane at 4.3 m/s.
(a) Calculate the angular displacement of the bowling ball.
(b) Calculate the angular velocity of the bowling ball.
(c) Calculate the centripetal acceleration of the bowling ball.
(d) Calculate the tangential acceleration of the bowling ball.
Question 2
The momentum of 1 J of energy in an electromagnetic wave is
A)
1.5 10-9 kgm/s.
B)
3 10-9 kgm/s.
C)
1 kg m/s.
D)
1 10-17 kgm/s.
E)
1000 kg m/s.
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Answer to Question 1
(a) 110 rad
(b) 48 rad/s
(c) 210 m/s2
(d) 0 m/s2
Answer to Question 2
B