Question

Compare the amount of work being done in the pictures below.

Select one:
a. More work is done lifting the weights.
b. More work is done raising the car.
c. Equal work is being done.
d. No work is done. ​

Answer 1

Option B

More work is done raising the car

Step-by-step explanation:

Given;

• “Man lifting 800 N weights 2 meters”
• Applied Force = 800 Newton
• Total Displacement = 2 meter
• “2000 N car being raised 1 meter”
• Applied Force = 2000 Newton
• Total Displacement = 1 meter

To Find;

• Work done = ?

For picture 1

W = F • d

W = 800 • 2

W = 1600 Nm

For picture 2

W = F • d

W = 2000 • 1

W = 2000 Nm

Thus, For picture 1, Work done is 1600 Nm and For picture 2, work done is 2000 Nm

So, More work is done raising the car.

-TheUnknownScientist 72