Physics final test

When converting m/s to mph what should you do

Multiple seconds then divide meters

On a velocity x time graph what is it units

M/S 2

What is the slope measured in on a velocity x time graph

Acceleration

What does a flat line mean on a velocity x time graph

Constant velocity

If you multiply a velocity x time graph what are the units

Distance

Nathan accelerates from rest to 28 mph in 2.5 sec. How many meters did he travel?

DON'T FORGET TO CONVERT AND FIND THE a FIRST!

15.6 m

A bus slows down from 20.8m/s to a stop in a distance of 219m. How many sec did it take? FIND the a first!

21 s

A worker drops a wrench from the top of a tower 80.0m tall. What is the velocity right before the wrench

39.5 m/s

The slope of a distance vs. time graph gives you the

Velocity

The area under a Velocity vs time gives you what

Distance

What does viy equal for a horizontal projectile?

0 m/s

17. What does viy equal for an angled projectile?

It depends on your V and angle

What are the units for a distance vs time graph

M/s

Does VY slow down or speed up while being thrown

Slows down

Does VY slow down or speed up while falling down

Speed up

What does VX do while being thrown

Stay constant

A marble rolls off the 2 floor as a HORIZONTAL PROJECTILE with a Vx of 1.34 m/s. As it falls from a height of 6.65 m. Find the X

1.55 m

A baseball player hits a ball with an actual velocity of 39 m/s at a 34˚ angle. Find the maximum

height of the ball.

24.2 m

Mrs B shoots a tennis ball at you. If it travels 24.5 m horizontally in a total time of 2.2 sec, find the actual velocity of the ball and the angle it was shot at. Find the VX, VIY, V and the angle

Vx: 11.1 m/s Viy: 10.78 m/s V: 15.4 m/s angle: 44.1

A daredevil is shot out of a cannon at 55˚ with a velocity of 35.5 m/s. A net is positioned at a

horizontal distance of 68 meters. At what height above the cannon should the net be placed in

order to catch the daredevil? YOU DO NOT WANT Δy AT THE MAXIMUM HEIGHT…YOU

WANT IT AT Δx = 68m 1. Find Vx and Viy 2. Use Δx = 68 m to find time 3. Find Δy

42.5 m