Power - Power is the rate of doing work. The unit of power is Joules and also called Watts. The equation for power is (work/time), the equation for work is (force x distance) and the equation for force is (mass x acceleration). The difference between work and power, lets say a person carries a backpack up a flight of stairs and another person doesn't. They both have the same amount of work but the person carrying a backpack requires more power.
Marshawn Lynch
Marshawn Lynch a running back on the Seattle Seahawks is running for a touchdown. Marshawn Lynch weighs 98kg and runs a 4.46 second 40 yard run. He runs at a speed of 8.2m/sec. His work force is 803.6 Joules and produces a power of 180.179 Joules!
Questions:
1. If Marshawn Lynch produced a work force of 900 Joules in 5 seconds how much work would he have produced?
A. 180 Joules
2. A running back weighing 60kgs and a running back weighing 70kgs run and both finish their 40 yard sprint at the same velocity. Which running back produces greater power?
A. The 70kg running back
Marshawn Lynch a running back on the Seattle Seahawks is running for a touchdown. Marshawn Lynch weighs 98kg and runs a 4.46 second 40 yard run. He runs at a speed of 8.2m/sec. His work force is 803.6 Joules and produces a power of 180.179 Joules!
Questions:
1. If Marshawn Lynch produced a work force of 900 Joules in 5 seconds how much work would he have produced?
A. 180 Joules
2. A running back weighing 60kgs and a running back weighing 70kgs run and both finish their 40 yard sprint at the same velocity. Which running back produces greater power?
A. The 70kg running back