A rectangular block is moving along a frictionless path when it encounters the circular loop as shown.The block passes points 1,2,3,4,1 before returning to the horizontal track.At point 3:
A)its mechanical energy is a minimum
B)the forces on it are balanced
C)it is not accelerating
D)its speed is a minimum
E)it experiences a net upward force

Question

A rectangular block is moving along a frictionless path when it encounters the circular loop as shown.The block passes points 1,2,3,4,1 before returning to the horizontal track.At point 3: 
A)its mechanical energy is a minimum 
B)the forces on it are balanced 
C)it is not accelerating 
D)its speed is a minimum 
E)it experiences a net upward force

Quizplus · Accepted Answer

The Answer of A rectangular block is moving along a frictionless path when it encounters the circular loop as shown.The block passes points 1,2,3,4,1 before returning to the horizontal track.At point 3: 
A)its mechanical energy is a minimum 
B)the forces on it are balanced 
C)it is not accelerating 
D)its speed is a minimum 
E)it experiences a net upward force

A Rectangular Block Is Moving Along a Frictionless Path When