When a heavy metal block is supported by a cylindrical vertical post of radius R, it exerts a force F on the post. If the diameter of the post is increased to 2R , what force does the block now exert on the post?
A) F/2
B) $F / \sqrt { 2 }$
C) 2F
D) F/4
E) F

Question

When a heavy metal block is supported by a cylindrical vertical post of radius R, it exerts a force F on the post. If the diameter of the post is increased to  2R , what force does the block now exert on the post?
A)  F/2 
B) $F / \sqrt { 2 }$
C)  2F 
D)  F/4 
E)  F

Quizplus · Accepted Answer

The force exerted by the block on the post is independent of the post's diameter or radius. It is determined by the weight of the block and gravity, both of which remain constant regardless of the post's size.

When a Heavy Metal Block Is Supported by a Cylindrical F/2F / \sqrt { 2 }F/2​

When a Heavy Metal Block Is Supported by a Cylindrical $F / \sqrt { 2 }$