Question

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

Answer 1

A.) more weight lighting weights

Answer 2

Answer:

Option B

More work is done raising the car

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