3) A uniform ladder 6.0m long rests at 45º angle against a frictionless wall. If the ladder has a mass of 20kg, what is the frictional force at the base of the ladder?
4)You're carrying a 3.6m long, 25kg pole to a construction site when you decide to stop for rest. You place one end of the pole on a fence post and hold the other end of the pole 35cm from its tip. How much force must you exert to keep the pole motionless and horizontal?
Hello Please... View the full answer