Question
Ronald McDonald needs to do 5,000,000J of work to burn off that Big Mac meal he just ate (Yes this is accurate). He wants to
Ronald McDonald needs to do 5,000,000J of work to burn off that Big Mac meal he just ate (Yes this is accurate). He wants to climb some stairs. If he has a mass of 100kg, how high would he have to climb?
Two kids are running in a park. Kid A uses 300N of force to run 30m and Kid B uses 450N of force to run 20m. Which child performed more work?
What is the work done by gravity when a 0.75kg cellphone falls from 1.2m?
How much power is generated by the phone if it takes 0.4s to fall?
What is the impact velocity of the phone?
You pick up a 7kg bag and lift it to a height of 0.7m. You proceed to walk down the hallway 25m carrying the bag. You stop and lift the bag from 0.7m to a height of 0.95m. You continue to walk another 10m and then stop for 75s to talk to your friend.
How much work did you perform on the bag throughout the whole scenario?
If it took you 0.95s to lift the bag to a height of 0.7m, how much power did you generate?
The engine of an airplane produces 120,000N of force to propel it 12,000m
How much work was done by the engine?
If the amount of force produced was cut in half, how far could the plane travel?
When the force is 120,000N, if the plane covers the 12,000m in 75s, how much power did the engine produce?
Some Avengers are having a contest to see who is the most powerful. To test this, they will each lift 2000kg above their head as fast as they can. Listed below are the stats for each competing superhero. Place the hero's in order from most to least powerful.
Capt. Americalifted the weight to a height of 2.2m in 1.6s
Iron Man lifted the weight to a height of 1.8m in 1.3s
Groot performed 28750J of work in 2.8s to lift the weight
Rocketperformed 22250J of work in 0.95s to lift the weight
Scarlet Witchlifted the weight in 1.3s to a height of 1.15m
You are pushing a sled with a force F over a distance D. When you double the force applied and the distance remains constant the amount of work you do ? . If you keep the force the same and triple the distance, the work you do ? . If you push the sled with F for a total distance D in half the time, the power generated
How much work is done holding a 6kg chair 10m high? How much power is generated by pushing a box with 100N for 8s a total distance of 20m? How much work is required to lift a 15kg table 1.7m in the air? How much power is produced when carrying a 5kg backpack 50m in 12s? If you produce 2000J of work by pulling a sled 10m in 4s, how much power do you generate? A powerlifter can hoist a 20kg dumbbell to 2.55m above his head. How much work did he do?
In the following scenarios, choose which one has more power. Make sure each comparison has a "More Power" and a "Less Power"
A 0.75kg ball thrown 20m in 2.4s with 80N or a 9kg bowling ball thrown 14m in 4s with 120N of force
You push a car with 300J of work for 5s Response area or you pull a sled with 85J of work for 1.5s
A 75kg student climbs 6m of stairs in 2.3s Response area or a 62kg student climbs 6m of stairs in 1.7s
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