Question

A motor lifts a 10,000 N elevator car a distance of 8 m in 6 seconds. A different motor exerting more power would lift _____.

a.) the same car the same distance in a greater number of seconds

b.) a lighter car the same distance in the same amount of time

c.) the same car a shorter distance in the same amount of time

d.) the same car the same distance in fewer seconds

Answer 1

D. The same car in the same distance in fewerseconds

Answer 2

Answer:

The same car the same distance in fewer seconds

Explanation:

Power is the ratio of work done (Force x distance) to the length of time used in doing the work. Since power is inversely proportional to time, the same work can be done faster (that is, with lesser time) by increasing the power supply.