Kinematics
The acceleration of a car going from 0 to 60 m/s in 4 seconds.
What is 15 m/s2
Newton's second law
What is F = ma
The force being exerted if you do 30 J of work to move a cart 6 m.
What is 5 N
The amount of time a car requires to slow to rest when decelerating at 3 m/s and having a starting speed of 60 m/s.
What is 20 seconds
The coefficient of friction that is greater than the other
What is static friction?
The height of a building where a ball is dropped from and hits the ground at 20 m/s.
What is 20 m
How far from the base of the table a toy car lands if rolls off a 1.25 m high table with a horizontal speed of 2.0 m/s.
What is 1.0 m
You are all collectively pushing Vince with a force of 620 N and he is 55 kg, and the coefficient of kinetic friction is 0.4. Vince's acceleration is...
What is 80/11 or 7.27 m/s
A 3 kg ball is lying on the ground. The final speed of the ball when you do 60 J of work.
What is 2sqrt10 or 6.32 m/s
The horizontal displacement of a soccer ball kicked at 20 m/s at an angle of 30° above the horizontal.
What is 34.64 m
You pull a 20 kg crate across a horizontal floor by applying a force of 100 N at a 30° angle above the horizontal. The coefficient of kinetic friction between the crate and the floor is 0.25. The acceleration of the crate is...
What is 2.51 m/s^2
You are sledding down a 10 m hill, and then slide up a 8 m hill with no friction. Find the speed at the bottom of the hill and top of the 8 m hill.
What is 10sqrt2 or 14.14 m/s at the bottom of the hill and 2sqrt10 or 6.32 m/s at the top of the 8 m hill.
Car A is traveling at 20 m/s and is 50 meters behind Car B, which is traveling at 15 m/s, both moving in the same direction toward a red traffic light. As soon as the light turns green, Car A begins to accelerate at 2 m/s², while Car B continues at constant speed.
Time it will take Car A to catch up to Car B
What is 5 seconds
A 2 kg mass is hanging from the ceiling of an elevator by a rope. The elevator is accelerating downward at 3 m/s^2. The tension in the rope is...
What is 14 N
A 5 kg block is pulled along a horizontal surface by a rope with tension T = 50 N, which makes a 60° angle above the horizontal. The net work done when it moves 8 meters across a surface with μₖ = 0.2.
What is 189.3 J