Question

Select the correct answer.

Which two factors does the power of a machine depend on?

A. 

work and distance

B. 

force and distance

C. 

work and time

D. 

time and distance

Select the correct answer.

Which two factors does the power of a machine depend on?

A. 

work and distance

B. 

force and distance

C. 

work and time

D. 

time and distance

Answer 1

Work and time

Explanation:

(1) Power of a machine is given by :

The work done of a machine is directly proportional to the work done and inversely proportional to the time taken by it.

So, the power of a machine depend on the work done and time taken. The correct option is (c) "work and time".

(2) This part is same as part 1.

i.e. power = work done/ time

or P = W / t

Hence, the correct option is (c) " work and time ".

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Answer 2

Work and time

Step-by-step explanation:

(1) Power of a machine is given by :

`P=(work\ done)/(time\ taken)`

The work done of a machine is directly proportional to the work done and inversely proportional to the time taken by it.

So, the power of a machine depend on the work done and time taken. The correct option is (c) "work and time".

(2) This part is same as part 1.

i.e. power = work done/ time

or P = W / t

Hence, the correct option is (c) " work and time ".