Displacement and Velocity
What is a vector?
What is magnitude and direction
What is the slope of a position time graph?
Velocity
What is acceleration
Change in velocity
-8.03m/s
What’s freefall
Only under gravity
What is the difference between distance and displacement?
Distance- the whole distance traveled
Displacement- distance from start to finish
Graph 1…
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What causes acceleration
Force
A ball is LAUNCHED at Hailey with a velocity of 60m/s. If she is 150 m away, and it takes 4 seconds to get to her, what is the final velocity?
15m/s
What did Galileo say?
Objects accelerate due to gravity and fall w/ same acceleration
How do you find average velocity?
Displacement/ time or (V0+V)/2
What is the slope on a velocity time graph?
Acceleration
A sports car can accelerate at a rate of 7.2 m/s2, how long does it take for the car to accelerate from 0 to 60mi/hr?
3.7s
If a car is going 15m/s for 3m, with a deceleration of 2m/s2, what is the average velocity of the car after the 3m?
14.79725 m/s
If an object drops from a 400m tall building, how heigh will it be from the ground after 5 seconds?
277.4m from the ground
How do you find average speed?
distance/time or (s0+s)/2
Graph 2
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What can cause an object to accelerate? (Think in a car)
Changing direction, slowing down, moving faster
If a boy throws a ball up over a cliff that is 133m heigh at 8m/s, how long dose it take to fall?
6.0897s
Free points 😭
😭
A boy runs 30m east, 40m north, 50m west. What is his net displacement?
45m, 27 degrees west of north
Graph 3
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If a cat accelerates from rest in a straight line with the acceleration of 1.7 m/s2, how long does it take for the antelope to reach 22m/s?
12.9 s
Explain 2 equations in your equation sheet…
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