Unit 1: Kinematics
A ball is rolling down a ramp. At 2 seconds the ball has a velocity of 5 m/s. At 5 seconds the ball has a velocity of 8 m/s. The acceleration of the ball is...
What is 1 m/s2?
If a car with a mass of 1,000 kg accelerates at a rate of 4 m/s², the force applied to the car is...
What is 4000 N?
The mass of a textbook that is sitting on a shelf 2 meters off the floor and has an energy of 40 J is...
What is 2 kg?
A pendulum near the surface of the Earth has a length of 2 m. The period of the pendulum is...
What is 2.81 s/seconds?
A car at the bottom of a 54 meter long hill starts at rest and then starts traveling up the hill. It takes the car takes 3.2 seconds to reach the top of the hill. The acceleration of the car is...
What is 10.54 m/s2?
A 15 kg sled is being pulled to the right with a force of 40 N while friction pushes to the left with a force of 10 N. The acceleration of the sled is...
An 8kg dog initially running at a velocity of 1m/s accelerates to a velocity of 6 m/s. The impulse on the dog is...
What is 40 kg m/s?
A pendulum on Earth with a length 3 m is attached to a mass of 8 kg. As it swings back and forth, the period is...
What is 3.44 s/seconds?
A group of students wants to test the ideas they learned in Physics class. To do this, one student climbs to the roof of her high school and drops a ball from rest. The student drops the ball from a height of 60 meters. It will take the ball....(time)
What is 3.46 seconds?
Kimberly is using a rope to lift a 1.5 kg box up at an acceleration of 2 m/s . The upwards force of the rope on the box is...
What is 18N?
The pendulum has a mass of 2 kg and swings with a velocity of 10 m/s at the lowest part of its path. The height above the minimum height the mass will swing is...
What is 5m?
What is 0.89 s/seconds?
An astronaut standing on planet Mercury’s surface drops a hammer. If the hammer falls 0.6 meters vertically in 1.8 seconds, the magnitude of the acceleration due to gravity at Mercury’s surface is...
What is 0.37 m/s2
(Show picture) Johnny is trying to solve the following problem: “A 1.4 kg chair is given an initial velocity of 2.3 m/s to the right and slides across a rough floor before coming to rest in 4.2 seconds. There is a constant friction force acting on the chair to the left. What is the magnitude of the friction force acting on the chair?” To help him solve the problem, he draws the free-body diagram below. Johnny made a mistake in his free-body diagram. His mistake is...
What is the arrow pointing up should be the same length as the arrow pointing down?
A 75 kg hockey player is skating across the ice at a speed of 6.0 m/s. The value of the average force required to stop the player in 0.65 seconds is...
What is 692 N?
A 2.0 kg cube oscillates horizontally on the end of a spring like the one shown below. The maximum displacement of the mass as it oscillates is 0.10 m and its period of oscillation is 0.50 seconds. The spring constant is...
A daring squirrel launches itself off a tree branch at a speed of 4 m/s directly upward. It reaches the top of its motion and then falls straight down to the ground, landing 8 meters below the branch. The magnitude of the squirrel's velocity just before it hits the ground is...
What is 12 m/s?
(Show picture) The free-body diagram below shows the forces acting on a box being pushed to the right with an applied force Fa on a rough surface. The mass of the box is...The acceleration of the box is....
What is 2.5 kg and 10 m/s2?
A 0.5 kg soccer ball is kicked so its velocity changes from 2 m/s to 8 m/s. The impulse delivered to the ball is...
What is 3 kg m/s?
Astronauts want a pendulum with a period of 4.3 s on another planet, Xircon-4. If the pendulum has a 0.50 kg mass attached to a massless cord and the gravitational field on Xircon-4 is 9.1 m/s , The length of pendulum should be...
What is 4.262 m?