Question

Mike is possibly the slowest creature on land. When he works in the garden (which isn't very often), his useful power output is 100W, and his efficiency 5%. Calculate: a the useful work done by the cheetah in 1 second; b how long it takes Mike to do the same amount of work.​

Answer 1

Answer:

Assume g = 10N/kg.

1 The cheetah is the fastest creature on land. A typical

cheetah, at full speed, has a power output of 1000 W,

and an efficiency of 15%.

Mike is possibly the slowest creature on land. When he

works in the garden (which isn't very often), his useful

power output is 100 W, and his efficiency 5%.

Calculate:

a the useful work done by the cheetah in 1 second;