Question

A 4400 W motor is used to do work. If the motor is used for 200 s, how much work could it do? (Power: P = W/t)

a) 880,000 J
b) 440 J
c) 8.8 J
d) 176,000 J

Answer 1

The motor with a power of 4400 W can do 880,000 J of work when used for 200 seconds. The correct answer is option A.

Step-by-step explanation:

The amount of work a motor can do is given by the formula W = P × t, where P is the power in watts and t is the time in seconds. Given that the motor has a power of 4400 W and it operates for 200 s, we can calculate the work done:

The formula for power (P) is given by the ratio of work (W) to time (t):

P=W/t

Rearranging the formula to solve for work (W), we get:

W= P.t

Now, you can substitute the given values into the formula:

W= (4400 W).(200 s)

W = 880,000 J

So, the correct answer is 880,000 J.