Kinematics
A car accelerates from rest to a speed of 25 m/s in 10 seconds. What is the car's acceleration?
2.5 m/s2
A 10 kg object is subjected to two forces. 30 N to the right, and 10 N to the left. What is the acceleration of the object?
2 m/s2
A 2kg ball is dropped from a height of 10 meters. What is the potential energy of the ball at 10 meters?
196 J
A 5 kg object is lifted vertically with a constant force of 60 N, over a height of 8 meters. What is the work done by the applied force?
480 J
Given a Position-Time Graph, how can you determine the velocity of an object?
By determining the slope
A car starts from rest and accelerates at a rate of 3 m/s2 for 8 seconds. How far does it travel in this time?
96 meters
Mrs. Post and Mr. Post decided to move the cabinet in their dining room. Mrs. Post and Mr. Post both stood on one side and each pushed left with 30 N of force, although there was a 10 N force of Friction. If the cabinet accelerates 0.24 m/s2, what is its mass?
208.3 kg
A 10 kg object is dropped from a height of 12 m. What is the Kinetic Energy of the ball just before it hits the ground?
1176 J
A 10 kg box is pushed across a horizontal surface with a constant force of 50 N over a distance of 5 meters. The coefficient of kinetic friction between the box and the surface is 0.3. Determine the work done by the force of friction.
147 J
Given a Force vs. Extension graph, what does taking to slope tell us?
The Spring Constant
A car is traveling at a constant speed of 15 m/s. It then begins to slow to a stop at a rate of 2 m/s2. How long does it take for the car to come to a stop?
7.5 seconds
If a 60 kg person on a 15 kg sled is pushed with a force of 300 N, what will be the person's acceleration?
4 m/s2
A 3 kg pendulum bob is released from a certain height. If its Kinetic Energy at its lowest point is 58.8 J, what is its Potential Energy at its highest point?
58.8 J
A 15 kg box is pushed across a horizontal surface with a constant force of 60 N over a distance of 10 meters. The coefficient of kinetic friction between the box and the surface is 0.25. Determine the net work done on the box (Hint: Start with a FBD)
232.5 J
An object starts at the 2m mark. It is traveling towards the origin, and it is speeding up. What are the signs of the initial position, initial velocity, and acceleration?
Positive, Negative, Negative
A skateboarder is moving at a speed of 4 m/s. They then accelerate at a rate of 1.5 m/s2 for 6 seconds. How far does the skateboarder travel during these 6 seconds?
51 meters
A 5 kg box starts from rest and is pushed across a frictionless surface with a force of 20 N. If the force is applied for 3 seconds, what will be the final velocity of the box?
12 m/s
A 5 kg block slides down a frictionless incline that is 4 meters high and 10 meters long. What is the speed of the block at the bottom of the incline?
6.2 m/s
A 5 kg object is pushed along a frictionless surface, increasing its speed from 2 m/s to 6 m/s. Calculate the net work done on the object
80 J
What is Hooke's Law
That the extension of a spring is directly proportional to the force
A stone is dropped from a height of 45 meters. Assume there is no air resistance. What is the velocity of the stone just before it hits the ground?
29.69 m/s Down
A 10 kg box is being pushed across a horizontal surface with a force of 50 N. The coefficient of friction between the box and the surface is 0.3, what is the acceleration of the box?
2.06 m/s2
A 2kg block is attached to a horizontal spring with a spring constant of 100 N/m. The block is initially compressed to 50 cm from its equilibrium position, and then released from rest What is the speed of the block as it passes through the equilibrium position?
3.53 m/s
A 10 kg object starts from rest and is pushed along a frictionless surface for 8 meters with 400 J of Work. What is the final velocity of the object after it is pushed?
8.94 m/s
What is the correct equation for weight?
Fg=mg