1- a man is riding a bicycle eastward on a bicycle when he reaches a large hill
ID: 1325069 • Letter: 1
Question
1- a man is riding a bicycle eastward on a bicycle when he reaches a large hill and loses speed as he ascends the hill. The front wheel of his bike has a radius of 0.7 meters. If his speed decreases from 15 m/s to 5 m/s over an interval of 15 seconds, what is the direction of his angular velocity?
a- north b-south c-east d- west e-upward f-downward
2- a man is riding a bicycle eastward on a bicycle when he approaches a large hill and loses heart and decides to turn around and return home. The front wheel of his bike has a radius of 0.7 meters. What is the direction of the angular acceleration of his front wheel as he makes a gradual left turn?
a- north b-south c-east d- west e-upward f-downward
3- a man is riding a bicycle eastward on a bicycle when he reaches a large hill and loses speed as he ascends the hill. The front wheel of his bike has a radius of 0.7 meters. If his speed decreases from 15 m/s to 5 m/s over an interval of 15 seconds, what is the size of the angular acceleration of the front wheel of his bicycle?
4-Calculate the force of friction that keeps a 67-kg person sitting on the edge of a horizontal rotating platform when the person sits 1 m from the center of the platform and has a tangential speed of 2 m/s.
5-Calculate the angular momentum of a 66-kg person sitting on the edge of a horizontal rotating platform when the person sits 2.7 m from the center of the platform and has a tangential speed of 3.2 m/s..
6-What is the average angular speed of an analog clock's minute hand in degrees per minute?
Explanation / Answer
1) a- north
2) e- upward
for the rest answer i am uploading the link here
http://postimg.org/image/3qiyeslwp/
thank you...
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