KE
What is the kinetic energy of a car with a mass of 500 kg and a speed of 5 m/s?
6250 J
What is the GPE of a ball with a mass of 0.5 kg and a height of 10 meters above the ground?
49 J
A baby carriage is sitting at the top of a hill that is 21 m high. The carriage with the baby weighs 12 N. Calculate the potential energy.
252 J
A box is pushed 40 m by a mover. The amount of work done was 2,250 J. How much force is exerted on the box?
56.25 N
A weightlifter lifts a 1,250 N barbell 2 m in 3 s. How much power was used to lift the barbell?
833 W
What is the kinetic energy of a truck with a mass of 800 kg and a speed of 10 m/s?
40,000 J
What is the GPE of a person standing at the top of a ladder with a height of 15 meters? The person has a mass of 80 kg.
11,760 J
A cinder block is sitting on a platform 20 m high. It weighs 79 N. Calculate the potential energy
1,580 J
A box is pushed 60 m by a mover. The mover can exert 40 N of force. How much work is done on the box?
2400 J
A weightlifter lifts a 2,050 N barbell 1.3 m in 6 s. How much power was used to lift the barbell?
444.16 W
What is the kinetic energy of a skateboarder with a mass of 70 kg and a speed of 5 m/s?
875 J
What is the GPE of a bowling ball with a mass of 1.5 kg and held 2 meters above the ground?
29.4 J
A roller coaster is at the top of a 72 m hill and weighs 966 N. Calculate the potential energy at this moment.
69, 552 J
A person is able to exert 500 N of force while moving a wheelbarrow. The work done on the wheelbarrow is 1500 J. How far was the wheelbarrow moved?
3m
What is the power required to run a light bulb using 600J for 10s?
What is the kinetic energy of a child on a swing with a mass of 30 kg and a speed of 3 m/s?
135 J
What is the mass of an object that has GPE of 1000J and is 10m off the ground?
10.2 kg
Calculate the weight of a rock that has a potential energy of 3,000 J and is sitting 300 m on top of a hill.
10 N
An 875N person climbs a ladder doing 7000J of work. How high was the ladder?
8 m
An object performs 75 J of work with 1276 W of power. How long does it take?
.058 s
Ronald McDonald threw a Frisbee to The Burger King. The Frisbee was traveling 12 m/s and had an energy of 300 J. What was the mass of the Frisbee?
4.16 kg
A high jumper jumps 2.04 m. If the jumper has a mass of 67 kg, what is his gravitational potential energy at the highest point in the jump?
1339.46 J
Calculate the height of the hill that a rock is sitting on if it has a weight of 30 N and a potential energy of 585 J.
19.5 m
A boy uses 75J to push a table 4m across the floor. With what force was the table pushed?
18.75 N
A crane has a power of 54 kW. It takes the crane 65 s to lift its load. How much work is generated by the load? (HINT: Convert from kW to W first)
3,510,000 J