Question

(b) A force of 50 N acts on a body and moves it a distance of 4 m on a horizontal surface. Calculate the work
done if the direction of force is at an angle of 60° to the horizontal surface.​

Answer 1

Answer:

100joule

Explanation:

force =50n। cos60=1/2

distance =4m

work done =fs*cos _

work done =50*4*cos60

work done =50*4*1/2=100joule

Answer 2

Given:-

• Force ,F = 50 N

• Displacemet ,s = 4 m

• Angle ∅ = 60°

To Find:-

• Work done ,W

Solution:-

As we know that Work Done is defined as the product of force and displacemet. But here we have to calculate the work done by body at given angles.

❒ W = Fs Cos∅

Where,

F is the Force

s is the Displacement

∅ denotes angles

Substitute the value we get

→ W = 50 × 4 × 1/2

→ W = 200 × 1/2

→ W = 100 J

Therefore, the work done by the body is 100 Joules .