________ is the power of the man who pushes the box 8m with a force of 15N in a 6seconds.
What is 20 watts?
100
______ is the force a boy pushes on a box of mass 16 kg and it moves at an acceleration of 3.2m/s^2.
What is 51.2N?
200
The rate of change of velocity.
What is acceleration ?
200
The product of the magnitudes of the component of a force along the direction of displaement and the displacement.
What is work ?
200
(mass)(acceleration)
(force)(distance)
What is force and work ?
200
Rocket-powered sleds are used to test the human response to acceleration. If a rocket-powered sled is accelerated to a speed of 444 m/s in 1.8 seconds, then _____ is the acceleration.
What is 247 m/s/s?
200
____ is the kinetic energy of a jogger whose mass is 65kg and is moving at a speed of 4 m/s.
What is 520J?
300
The energy of an object due to its motion.
What is kinetic energy ?
300
Energy associated with an object due to its position.
What is potential energy ?
300
1/2 MV^2
PgH
What is kinetic energy and potential energy ?
300
A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.0 m long. The bowler hears the sound of the ball hitting the pins 2.90 s after the ball is released from his hands. The speed of sound is 340 m/s.______ is the speed of the ball.
What is 5.608 m/s?
300
____ is the potential energy of a 4 kg rock that is sitting on a 3 m ledge.
What is 10 m/s^2?
400
The rate at which energy is transferred.
What is Power ?
400
The sum of kinetic energy and all forms of potential energy.
What is mechanical energy ?
400
potential+kinetic
work/time
What is mechanical energy and power ?
400
A runner impacts the ground with a force of 1083 N. If he runs a distance of 3000 m, _____ is how much work does the runner does.
What is 3,249,000 J?
400
_____ is the Mechanical Energy of a 78-kg skydiver that has a speed of 62 m/s at an altitude of 870 m above the ground.
What is 8.1 x 105 J ?
500
A vector quantity defined as the product of an object's mass and velocity.
What is Momentum ?
500
For a constant external force, the product of the force and the time over which it acts on an object.
What is impulse ?
500
mass x velocity
Ft
What is momentum and impulse ?
500
_______ is the momentum of a 360,000-kg passenger plane taxiing down a runway at 1.5 m/s
What is 5.4 x 105 kg•m/s?
500
______ is the impulse of a force of 30000 N exerted for 4.00s on a 95,000 kg mass.