Velocity
Define Velocity
the speed of something in a given direction.
Define acceleration
What is the RATE of CHANGE of the velocity of an object with respect to time?
This is necessary for there to be 0 net force.
What is 0 acceleration?
Write the equation that came from Newton's second law of motion.
What is F=ma?
True or False? Newton's third law of motion is: for every action, there is an opposite and equal reaction.
True
What is the formula for velocity?
R=d/t
Formula for Acceleration
What is Change in velocity/time taken
Matthew pushes a 2kg box with 30N of force to the left. Jarret pushes the same box with 40N of force to the right. What is the net force on the box?
10N
Which of the following is not a part of Newton's second law? Acceleration, Mass, Displacement, Force
What is Displacement?
Define Newton's first law of motion.
What is an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.
A car travels at uniform velocity a distance of 100 m in 4 seconds. Determine the velocity of the car.
What is 25km/h?
A car starts from rest and accelerates uniformly over a time of 5.21 seconds for a distance of 110 m. Determine the acceleration of the car.
a = 8.10 m/s^2
Finn swings a hammer that exerts a 32N force on a nail. What is the force the nail exerts on the hammer?
-32N
A 500-Newton rightward net force is accelerating an object to the right at 5 \m/s^2. What is the mass of the object (in kilograms)?
What is 100kg
When a large truck pushes a small car with a given force, does the small car apply an equal and opposite force on the truck?
Yes
Griffen flys an airplane and accelerates down a runway at 3.20 m/s2 for 32.8 s until it is finally lifted off the ground. Determine the distance traveled before takeoff.
What is d = 1720 m
A bike accelerates uniformly from rest to a speed of 7.10 m/s over a distance of 35.4 m. Determine the acceleration of the bike.
a = 0.712 m/s^2
Seth pushes a 3.2kg box with 1.5N of force. What is the resultant acceleration?
0.47m/s^2
A 400N ball rests on a flat table. What is the normal force exerted on the ball by the table?
-400N
Luke's cat has a mass 5kg jumps on a dining table of mass 30kg. As the cat walks around on the table, what is the average force that the table applies to the cat?
50N
Garret travels from point A to B in 3 hours and returns back to point A in 5 hours. Points A and B are 150 miles apart along a straight highway. What is the velocity of the car?
37.5mph
A racecar accelerates uniformly from 18.5 m/s to 46.1 m/s in 2.47 seconds. Determine the acceleration of the car and the distance traveled.
a = 11.2 m/s^2 and d = 79.8 m
Ethan bowls a ball with 31N of force. He observes that it has a constant linear acceleration of 2.1m/s^2. What is the mass of the ball?
14.76kg
A man of mass 50kg on the top floor of a skyscraper steps into an elevator. What is the man's weight as the elevator accelerates downward at a rate of 1.5ms2?
425N
Ines is riding his skateboard and pushes off the ground with his foot. This causes her to accelerate at a rate of 4ms2. Ines weighs 589 N. How strong was her push off the ground?
240N