Torque Due to Weight Video Lessons

Video Thumbnail

Concept

Problem: You're carrying a 3.8-m-long, 23kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 cm from its tip.How much force must you exert to keep the pole motionless in a horizontal position?

FREE Expert Solution

35 cm(1m/100cm) = 0.35 m

Applying rotational equilibrium:

mg(3.8/2) = F(3.8 - 0.35)

93% (203 ratings)
View Complete Written Solution
Problem Details

You're carrying a 3.8-m-long, 23kg pole to a construction site when you decide to stop for a rest. You place one end of the pole on a fence post and hold the other end of the pole 35 cm from its tip.

How much force must you exert to keep the pole motionless in a horizontal position?

Frequently Asked Questions

What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Torque Due to Weight concept. You can view video lessons to learn Torque Due to Weight. Or if you need more Torque Due to Weight practice, you can also practice Torque Due to Weight practice problems.