Question

How much power is needed for Speed Gonzalez to push a chunk of cheese if work equals 0.375 J for 15 seconds?

A. 0.025 W
B. 0.025 J
C. 0.025 W/s
D. 0.025 J/s

Answer 1

The power needed for Speedy Gonzalez to push a chunk of cheese is 0.025 watts, calculated by dividing the work of 0.375 J by the time of 15 s.

Step-by-step explanation:

To calculate the power needed for Speedy Gonzalez to push a chunk of cheese, we use the formula for power (P), which is work (W) divided by time (t). The work equation is given as 0.375 joules (J) and the time is 15 seconds (s). The power is simply calculated by dividing the work by the time:

P = W / t = 0.375 J / 15 s = 0.025 watts (W).

Since power is the rate at which work is done, the unit for power is normally expressed in watts, which is equivalent to joules per second (J/s). Thus the correct answer is A. 0.025 W.