A uniform ladder is 10 m long and weighs 400 N.It rests with its upper end against a frictionless vertical wall.Its lower end rests on the ground and is prevented from slipping by a peg driven into the ground.The ladder makes a 30 ° angle with the horizontal.The force exerted on the wall by the ladder is:
A)47 N
B)74 N
C)120 N
D)350 N
E)460 N

Question

A uniform ladder is 10 m long and weighs 400 N.It rests with its upper end against a frictionless vertical wall.Its lower end rests on the ground and is prevented from slipping by a peg driven into the ground.The ladder makes a 30 °  angle with the horizontal.The force exerted on the wall by the ladder is: 
A)47 N 
B)74 N 
C)120 N 
D)350 N 
E)460 N

Quizplus · Accepted Answer

The Answer of A uniform ladder is 10 m long and weighs 400 N.It rests with its upper end against a frictionless vertical wall.Its lower end rests on the ground and is prevented from slipping by a peg driven into the ground.The ladder makes a 30 °  angle with the horizontal.The force exerted on the wall by the ladder is: 
A)47 N 
B)74 N 
C)120 N 
D)350 N 
E)460 N

A Uniform Ladder Is 10 M Long and Weighs 400