Work and Force Calculations

The video tutorial explains how to calculate the work done by a force of 50 Newtons acting on a body over a distance of 4 meters on a horizontal surface. The force is applied at an angle of 60 degrees to the horizontal. The instructor uses a diagram to illustrate the problem and applies the formula for work done, which involves the force, the angle, and the displacement. The calculation is simplified by using the cosine of 60 degrees, which is 0.5, leading to a final answer of 100 Joules. The video concludes with a reminder to like the video.

What is the force applied to the body in the problem?

• 40 Newtons

• 50 Newtons

• 60 Newtons

• 70 Newtons

At what angle is the force applied to the horizontal surface?

• 30 degrees

• 60 degrees

• 90 degrees

• 45 degrees

Which formula is used to calculate the work done in this scenario?

• Work = Force x Distance x Time

• Work = Force x Sin(Theta) x Distance

• Work = Force x Cos(Theta) x Distance

• Work = Force x Distance

What is the cosine value of the 60-degree angle used in the calculation?

• 0.5

• 0.25

• 1

• 0.75

What is the final calculated work done on the body?

• 50 Joules

• 75 Joules

• 100 Joules

• 125 Joules