The velocity-time graph for a two-stage rocket is shown below. Use the graph and your understanding of slope calculations to determine the acceleration of the rocket during the listed time interval.
What is the acceleration of the rocket from t=4 -> t=12 ?
Question 4
4.
Question 5
5.
Question 6
6.
When interpreting a Velocity vs Time graph, the slope is the _______ . BUT! On a Pos vs Time graph the slope is the _______.
Question 7
7.
On Earth, things fall towards the center of the Earth at __________ m/s/s (m/s^2). BUT! On the moon, objects fall at __________ m/s/s (m/s^2). This is due to the moon having __________ mass than the Earth.
Question 8
8.
Draw what you predict 'freefall' on a pos vs. time graph and vel vs. time graph would look like.
Question 9
9.
Question 10
10.
Question 11
11.
What is acceleration? Type a definition for this term in your own words.
Question 12
12.
Question 13
13.
2
2
2
Question 17
17.
Explain why the velocity of an object decreases as it rises, but increases as it falls.
Question 18
18.
Question 19
19.
In your own words, what does a line with a slope of 1 on a Velocity-Time Graph mean?
Question 20
20.
Acceleration due to gravity is always ______________ (Direction and units needed for full points).
Question 21
21.
What was the speed of the ball when it hit the ground below the cliff?
Question 22
22.
What is the distance of the ball above its initial position when it reaches the peak?
Rank the cars from top (greatest) acceleration to bottom (smallest) acceleration.
blue
green
red
Consider the position-time graph. Each one of the three lines on the position-time graph corresponds to the motion of one of the three cars. Match the appropriate line to the particular color of the cars in problem #1.
blue
B
green
A
red
C
What is the graphical interpretation of the motion of the car?
What is the graphical interpretation of the motion of the car?
REVIEW: Look at the distance-time graph below.
What is the total distance traveled?
100 cm
3 cm
5 cm
50 cm
REVIEW: A kayaker paddles along a river for 4 hours. In that time, she manages to move a total of 20 miles. What is the average speed of the kayak for this trip?
4 mph
16 mph
5 mph
20 mph
A ball begins rolling down a hill. After 5 seconds, its velocity is 10 meters per second. What is the acceleration of the ball?
15 m/s2
2 m/ss
10 m/s2
5 m/s2
A vehicle brakes from 30 mph to 5 mph over a period of 10 seconds. What is the
vehicles acceleration?
