The normal force cannot be negative, agreed?Brett R. said:But why does the normal force have to equal 0?
The general loop the loop problem is a physics problem that involves a mass traveling in a track with a loop. The goal is to determine the minimum speed required at the top of the loop for the mass to complete the loop without falling off.
The minimum speed at the top of the loop is calculated using the conservation of energy principle. This involves equating the initial kinetic energy of the mass to the sum of its potential energy at the top of the loop and its kinetic energy at the bottom of the loop.
The minimum speed at the top of the loop is affected by the radius of the loop, the height of the loop, and the acceleration due to gravity. It is also affected by the mass of the object, as a heavier object will require a higher minimum speed to complete the loop.
The shape of the loop does not affect the minimum speed at the top, as long as the loop is circular. This is because circular motion is independent of the shape of the path.
If the minimum speed is not reached at the top of the loop, the mass will not have enough kinetic energy to complete the loop and will fall off the track. This is because the force of gravity will be greater than the centripetal force needed to keep the mass in circular motion.