Mechanics 2

Mechanics 2 - Mechanics 2 Remember the difference between...

Info iconThis preview shows pages 1–6. Sign up to view the full content.

View Full Document Right Arrow Icon
Mechanics 2
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Remember the difference between weight and mass? An anvil will be weightless in space because there is no gravity. But it still has mass , so it would be hard to shake. Something with a large mass requires a large force to make it accelerate
Background image of page 2
The origin of the gravitational force Any two objects with masses M, m attract each other with a force (G is Newton’s constant): The gravitational force which we experience is due to the Earth.
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Newton’s insight was that the same force which causes the Moon to accelerate (why?) towards the Earth also causes an apple to accelerate towards the Earth. The Moon is less massive than the Earth (but its radius is also smaller). I just lost 150 lbs! If you weigh 180 lbs on Earth, you would weigh only 30 lbs on the moon.
Background image of page 4
nd Law net If F and v are: “speeding up” “slowing down” “turning” Net force and acceleration are in boldface. They are both vectors: a
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Image of page 6
This is the end of the preview. Sign up to access the rest of the document.

This note was uploaded on 10/14/2008 for the course PHYS 10 taught by Professor Gruner during the Fall '08 term at UCLA.

Page1 / 16

Mechanics 2 - Mechanics 2 Remember the difference between...

This preview shows document pages 1 - 6. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online