Question

In which situation is the maximum possible work done?

a. when the angle between the force and displacement is 0
b. when the angle between the force and displacement is 180
c.when the angle between the force and displacement is 45
d. when the angle between the force and displacement is 90

Answer 1

when the angle between the force and displacement is 0°

Step-by-step explanation:

Answer 2

Answer is A.

Step-by-step explanation:

Remember the equation for work:

W = F d cos θ

Math explanation: When θ = 0, cos θ = 1, so Fd is a maximum. For any other value of θ up to 90 degrees, cos θ < 1 so Fd will be smaller. For θ = 180, you're pushing away from the direction of displacement so you're actually doing negative work.

Intuitive explanation: you have the most success pushing an object when you apply the force directly against it compared to if the force was directed at an angle.