Answer:
10,000 Watts
Explanation:
Power is the ratio of work to time, or work over time. It can be found using the following formula.
p=w/t
where p is the power, w is the work, and t is the time.
The project needed 200,000 Joules, and it took 20 seconds to complete the project. Therefore, w=200,000 and t=20. Substitute these values into the formula.
p=200,000/20
Divide
p=10,000
Add appropriate units. The units for power is Watts.
p=10,000 Watts
10,000 Watts of power is needed.
