1 Dimensional Motion
What is the difference between speed and velocity?
Speed is a scalar quantity, while velocity is a vector quantity.
For a projectile, which velocity remains constant as long as air resistance is ignored?
What is Horizontal.
A man is whirling a 0.5 kg ball on a 1.0 m long string at 2 m/s. What is true about the force on the ball?
What is it pulls in towards the center of the circle.
An object has a mass of 100 kg moving at 5 m/s. What is the linear momentum of the object?
A golf club has 10 kg m/s of momentum when it hits a golf ball that is at rest. After the collision, the golf club has a momentum of 1 kg m/s and the golf ball has a momentum of 9 kg m/s. Which of the following comparisons is TRUE about the change in momentum of the two objects?
What is the change in momentum is equal and opposite for the two objects.
What is the Sl unit for acceleration?
what is m/s^2
A football was kicked toward the goal. The horizontal component of velocity was 10 m/s and the vertical component was 7 m/s . What is the magnitude of the resultant velocity of the soccer ball?
What is 12m/s.
If the car of 75kg is traveling around a curve of radius of 50m at a velocity of 15 m/s, what is the centripetal force of the car?
What is 337N.
A 0.8 kg baseball is dropped from a height of 5 meters above the ground. What is the initial gravitational potential energy of the system consisting of the Earth and the baseball?
What is 39.24J
What is an object's change in momentum equal to?
What is the impulse acting on the object.
What is the average acceleration of an object that changes its velocity from 10 m/s to 30 m/s in 5 seconds?
What is 6 m/s^2.
Which of the following is an example of two-dimensional motion with constant acceleration?
What is a ball thrown at an angle.
A child riding a merry-go-round feels a centripetal force. How would the magnitude of the acceleration change if the velocity doubled (2x)?
What is quadrupled 4x.
A 4 kg pendulum is pushed up from the ground with a velocity of 10 m/s. What maximum height will the pendulum reach?
What is h=5.1m
A 1 kg ball is held at rest at a height of 2 meters above the ground. What is the gravitational potential energy of the ball-Earth system?
Alex kicked a ball with the displacement of 60 m at 5 seconds what is the velocity that the ball was kicked?
The ball was kicked with a velocity of 12m/s.
A runner ran 25km east for 5 minutes he then did a rest walk of 5km for 1 minute what is the total velocity the runner had?
What is 300km.
A yoyo was spinning around on a string at a constant speed. Then it went around the same curve at half of the original speed what is the new force acting on the yoyo?
What is one quarter of the original force.
A 2kg kite is being flown at a height of 5 meters from the ground at a speed of 1 m/s. What will be the final velocity once the kite starts to hit the ground.
What is 9.95 m/s.
A golfer is hitting a ball with 5000 grams. How much energy is needed to hit the ball into the hole with a velocity of 4 m/s?
What is KE= 40J
The displacement of the object was 200m at 20 seconds the object was then thrown back to its original position in 10 seconds what is the acceleration and velocity after the 10 seconds?
A=-8m/s^2
V= 20m/s
A firework was shot into the air at 20km north, the fire work traveled 5km east which is where it ended what is the total displacement of the firework?
What is 20.62km
A 1000kg motor cycle and a hit the back of a 6000 mini van although the motor cycle hit the van more damage was done to the van. why is that?
What is the velocity and the speed of the motorcycle was high which caused the force to be high as well.
A thrower is at a track meet and throws a 50kg ball at a speed of 5 m/s once the ball hit the ground what was the total momentum of the ball once it hit the ground.
What is 250 kg.
A 10kg track runner is running at a speed of 15m/s KE of the runner?
What is 1125J.