| Dimensional Analysis, Order of Magnitude, Vector Scalar Quantities, and Inclined Planes | Constant Velocity, UAMs, Freefall (part 1) | Free Fall (part 2), Newton's Laws of Motion, Friction | Perpendicular Constant Velocities, Vertical Projectiles, Horizontal Projectiles (Part 1) | Horizontal Projectiles (Part 2), Projectiles at Any Angle, Impulse |
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How many seconds are in 3 days?
259,200 seconds
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If the distance between my car and the car in front of me is 1.2 m and it takes 3 seconds to catch up to the other car. What is my car's velocity?
V= .4 m/s
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Wily Coyote falls of a 20 m cliff. How long does it take for him to hit the ground?
t= 2.02 seconds
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A boat is traveling up a river at 4 m/s. The boat current of the river is 6 m/s. What is the resultant velocity?
Vr= 7.21 m/s
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A cannon fires a cannon ball off of a 10 m high cliff. The ball travels at 5 m/s. How far from the edge of the hill does the cannon ball land?
d= 7.15 m
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What are the SI units for momentum?
Kg m/s
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If my sled is moving at 7 m/s and travels a distance of 12 m. How long does it take to travel 12 m?
t= 1.71s
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A 20 kg box is on wheels moving at 5.2 m/s squared. What is the Fnet?
Fnet= 104 N
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A boat traveling up a 5 m river ends up 6 m from the original position it was in. The boat traveled at 7 m/s. How long does it take for the boat to cross the river.
t= .714 seconds
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A ball is shot into the air at an angle of 30°. The velocity of the ball is 2.5 m/s. What is the max. height the ball travels?
Max height= .08 m
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What is a soda can's height when measured to a power of ten?
a) 10^-3 m b) 10^-2 m c) 10^-1 d) 10^0
c) 10^-1
This is because a soda can is closest to being .1 m tall. |
A ball is rolled from one person to the next across a 10 m piece of wood. It accelerates at 2.4 m/s squared. If it starts at 0 m/s, what is it's final velocity?
Vf= 6.93 m/s
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2 people are pulling a box from 2 different directions. Person number 1 is pulling to the right with a 7 N force. Person number 2 is pulling to the left with a 3 N force. The box weight is 50 kg. What is the acceleration?
a= .08 m/s squared
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A ball is tossed by a person and it takes 5 seconds to return. How high did the ball go?
d= 30.7 m
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A balloon is launched into the air at an angle of 55° and a velocity of 7.3 m/s. What is the distance in the x-direction?
d= 4.19 m
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A 4 story building is approximately how tall?
a) 10^0 m b) 10^4 m c) 10^10 m d) 10^1 m
d) 10^1 m
This is because one story is around 2 meters. 2 meters times 4 stories is 8 meters. That is closest to 10^1 meters. |
How long does it take a dog running at 2 m/s/ to run 6m and come to a full stop?
t=6 seconds
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What is the force of friction between a waxed ski on snow traveling down a hill? The skis weigh 20 kg.
Ff= 9.81 N
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A water balloon is thrown straight up a distance of 20 m. How long did it take for the stove to return to the hand of the person who threw it?
Total time= 4.04 seconds
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An unbalanced 8.0 N force acts westward on an object for 4 s. The impulse produced is
J= 32 N s
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One Person is pushing a 4 kg crate up a 30˚ ramp. What is the force of friction?
Ff= 33.9 N
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2 girls decide to drop a 3 kg water balloon from a 10 m high building on their teacher. What is the velocity at which it hits their teacher?
Vf= 14 m/s
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The force of friction between a 7 N block and a level ground is 1.08 N. What can the 2 materials be?
Rubber and Ice
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A ball is kicked off a 12 m high cliff and lands 25 m from the edge of the cliff. What was the initial velocity of the ball?
Vi= 16.0 m/s
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A force of 15 N is exerted on a cart for 6s. How long must a 20 N force act to produce the same impulse?
t= 4.5 s
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