lec4 - L ECTURE 4 N EWTON S 1 ST AND 2 ND L AWS Newtons 1st...

Info iconThis preview shows pages 1–7. Sign up to view the full content.

View Full Document Right Arrow Icon
L ECTURE 4: N EWTON S 1 ST AND 2 ND L AWS Newton’s 1st Law of Motion Mass/inertia Newton’s 2nd Law of Motion Net Force Free-body diagrams
Background image of page 1

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

View Full Document Right Arrow Icon
1. Roughly estimate the speed of a long “bomb” thrown by a quarterback in m/s. (Hint: v = Δ s / Δ t , where Δ s is the change in distance.) (a) 0.3 (b) 3 (c) 30 (d) 300 2. Roughly estimate the acceleration of the football while the quarterback is throwing it (in m/s 2 ). (Hint: a = Δ v / Δ t .) (a) 0.5 (b) 5 (c) 50
Background image of page 2
Acceleration occurs whenever speed or direction change Hay. ~ a = ~ Δ v / Δ t
Background image of page 3

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

View Full Document Right Arrow Icon
1. A golf ball rests on a tee. Its acceleration is (a) positive in the direction of the fairway (b) nearly zero (c) perpendicular to the fairway (d) negative in the direction of the fairway
Background image of page 4
2. A hockey puck slides down the ice. Its acceleration is (a) positive in the direction of motion (b) nearly zero (c) perpendicular to the direction of motion (d) negative in the direction of the motion
Background image of page 5

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

View Full Document Right Arrow Icon
(a) positive in the direction of motion
Background image of page 6
Image of page 7
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 22

lec4 - L ECTURE 4 N EWTON S 1 ST AND 2 ND L AWS Newtons 1st...

This preview shows document pages 1 - 7. Sign up to view the full document.

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