HOMEWORK - Lee Hoeppner February 14, 2010 Astronomy 100...

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Lee Hoeppner February 14, 2010 Astronomy 100 HOMEWORK 4 Unit 15… RQ 2 and 4 UNIT 16… RQ 2, 4, 6 UNIT 15 Q 2. When an object has velocity in the positive X direction and an acceleration in the negative X direction at the same time they cancel each other out because the acceleration of an object is defined as its change in velocity divided by the time taken to change it. The force acting on an object equals the product of its acceleration and mass. The amount of acceleration that the body will experience is equal to the force applied divided by the body’s mass. Q 4. An object can experience a force yet maintain an unchanging speed when an objects mass is increased because the force acting on an object equals the product of its acceleration and it’s mass. So, if its acceleration is remained unchanged that means if mass is increased to create force on an object. UNIT 16 Q 2. When the distance between two masses is doubled, the gravitational force between them decreases by a factor of four, not two. We call this an inverse-square proportionality.
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This note was uploaded on 04/27/2010 for the course ACC 440 taught by Professor Duncan during the Spring '10 term at Ball State.

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