A 25-kg box is sliding down an ice-covered hill. When it reaches point A, the box is moving at 11 m/s. Point A is at the bottom of a circular arc that has a radius R = 7.5 m. What is the magnitude of the normal force on the box at Point A?
A)250 N
B)280 N
C)400 N
D)650 N
E)900 N

Question

A 25-kg box is sliding down an ice-covered hill. When it reaches point A, the box is moving at 11 m/s. Point A is at the bottom of a circular arc that has a radius R = 7.5 m. What is the magnitude of the normal force on the box at Point A? 
A)250 N 
B)280 N 
C)400 N 
D)650 N 
E)900 N

Quizplus · Accepted Answer

The Answer of A 25-kg box is sliding down an ice-covered hill. When it reaches point A, the box is moving at 11 m/s. Point A is at the bottom of a circular arc that has a radius R = 7.5 m. What is the magnitude of the normal force on the box at Point A? 
A)250 N 
B)280 N 
C)400 N 
D)650 N 
E)900 N

A 25-Kg Box Is Sliding Down an Ice-Covered Hill