Question

please answer this question.​

Answer 1

Answer:

max work-angle is 0

min work-angle is 90

Explanation:

W=F.scostheta

Answer 2

Answer:

1) 0° 2) 180°

Explanation:

work = FScosθ.

where, theta is the angle between F and S

For maximum work,

cos θ = 1 (1 is the greatest value in cos ratio)

cos θ = 1 when θ = 0°

therefore, for maximum work, angle between force and displacement is 0°.

For minimum work,

cos θ = -1 (-1 is the least value in cos ratio)

cos θ = -1 when θ = 180°.

therefore, for minimum work, angle between force and displacement is 180°.