An axis is the straight line around which rotation takes place.
Rotation=Spin=internal axis
Revolution=external axis
Linear speed=distance traveled per unit of time=(m/s)
Tangential speed=speed of something moving along a circular path=direction of motio
Sarah Metz
Physics
#19-31
19. C, A, B
a. A 5 B 5 C 5 D b. D, C, B, A
c. D,C,B,A
d. D, C, B, A
e. None on any (force is only inward)
21. A, C, B
22. A, B, C
23. F =[(2 kg)(3 m/s)2]/(2.5 m) = 7.2 N
24. F = [(60 kg)(5 m/s)2]/(6 m) = 250 N
25. F = [(2 kg)(10
Sarah Metz
February 13, 2017
A Block
Chapter 10 Outline- Circular Motion
10.1 Rotations and Revolution
An axis is the straight line around which rotation takes place.
Two types of of circular motion are revolution and rotation.
When an object turns abo
Sarah Metz
Physics
February 20, 2017
#37-56
37. The motion through the air, together with the bank angle of the wings, produces a force of which a
component is centripetal.
38. Yes, if the horizontal component of normal force
is equal to the centripetal f
Sarah Metz
February 13, 2017
Physics
Think and Concept Questions
Think:
1. Her rotational speed is also 4 RPM and her linear speed is 3m/s.
2. The outer track is longer-just as a circle with a greater radius has a greater circumference.
3. The observer in
Physics Chapter 9:
Work=net force x distance
Work is the product of the net force on an object
W=Fd
Joule; unit of work
Power is the rate at which work is done
power= work done/ time interval
Watt= the unit of power is the joule per second
energy= the pro
Sarah Metz
February 14, 2017
Chapter 10: #1-18
1. Rotationabout an axis within the body; revolution around an axis external to the body
2. Revolve
3. Lineardistance/time; rotationalangle/time or number of rotations/time
4. Tangential speed
5. Directly, v