A uniform ladder is 10 cm 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$\degree$ angle with the horizontal. The force exerted on the wall by the ladder is:
A) 48 N
B) 74 N
C) 120 N
D) 350 N
E) 610 N

Question

A uniform ladder is 10 cm 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$\degree$ angle with the horizontal. The force exerted on the wall by the ladder is: 
A) 48 N 
B) 74 N 
C) 120 N 
D) 350 N 
E) 610 N

Quizplus · Accepted Answer

The Answer of A uniform ladder is 10 cm 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$\degree$ angle with the horizontal. The force exerted on the wall by the ladder is: 
A) 48 N 
B) 74 N 
C) 120 N 
D) 350 N 
E) 610 N

A Uniform Ladder Is 10 Cm Long and Weighs 400 °\degree°

A Uniform Ladder Is 10 Cm Long and Weighs 400 $\degree$