Graphing
Graphed on the y-axis
What is the dependent variable?
These zeros are ALWAYS significant
captive / confined
A car slowing down in the negative direction has what type of acceleration?
positive
Vectors have both _______ and _________.
magnitude and direction
Is inertia a force?
NO
The general equation used for a line
y = mx + b
253 m / 14.72 s =
17.2 m/s
Jack started at rest and increased the speed of his Tesla to 50.0 m/s in 7.50 s. What was his acceleration?
6.67 m/s2
You have two vectors, A and B. To add B to A you must ___________ .
Add the tail of B to the tip of A
200 N Tony slides down a slide that makes an angle of 35 degrees with the horizontal. What is the normal force on Tony?
How do you straighten a side-opening parabola?
square the y
250 kg - 18.5 kg =
230 kg
Paula jumped off the Rock of Gibraltar, which is 124 m high, into the cool waters below. How long did it take Paula to hit the water? (sig figs)
5.03 s
Tony throws a pizza 22.6 m/s at an angle of 30 degrees. What is the horizontal velocity of the pizza?
19.6
200 N Tony slides down a slide that makes an angle of 35 degrees with the horizontal. What is the perpendicular force of Tony's weight?
iron(III) phosphate
In the spaghetti bridge lab, the bridge strength(nuts) depended on the bridge design(noodles).
What was the dependent variable?
bridge strength
Nathan ran 4 miles from WLA to Hardees, then 2 miles to NFDL, then 6 miles to WLA.
What was Nathan's distance run and his displacement?
distance = 12 miles
displacement = 0 miles
Eli kicked a soccer ball from the 10. m marker to the 86 m marker in 2.46 s. What was the velocity of the ball? (sig figs)
31 m/s
If you fall down a mineshaft for three seconds, what is your horizontal acceleration?
0 m/s
200 N Tony slides down a slide that makes an angle of 35 degrees with the horizontal. The slide is frictionless. What is Tony's acceleration?
The slope of a velocity-time graph
What is acceleration?
How far will a dropped rock fall in 2 seconds?
19.6 m
David kicked a soccer ball at a 45 degree angle. While it is in the air, when will the soccer ball have a positive acceleration?
NEVER
A ball travels 40 m to the north, 20 m to the east, and 30 m to the south. What is the displacement of the ball?
22 m @ 27 degrees
Who is buried in Grant's tomb?