- Why is there no normal force at the top of a loop?
- Why do you feel weightless at the top of a loop?
- What is the normal force in circular motion?
- How do you find the G force of a loop?
- How do you find tangential acceleration?
- How do you find the speed of a roller coaster at the top of a loop?
- What is the normal force at the top of a loop?
- How fast would a car have to go to do a loop?
- What’s the minimum speed for a roller coaster car at the top of the loop if it’s to stay on the track?
- Is there kinetic energy at the top of a loop?

## Why is there no normal force at the top of a loop?

When at the top of the loop, the gravitational force is directed inwards (down) and so there is less of a need for a normal force in order to meet the net centripetal force requirement..

## Why do you feel weightless at the top of a loop?

Feelings of weightlessness and heaviness are associated with the normal force; they have little to do with the force of gravity. … At the top of the loop, the gravity force is directed inward and thus, there is no need for a large normal force in order to sustain the circular motion.

## What is the normal force in circular motion?

At the minimum speed that will prevent the object from falling, the normal force is 0 and the gravitation is the centripetal force. If the speed is larger, then the normal force will be positive and will combine with gravitation to result in the centripetal force.

## How do you find the G force of a loop?

To calculate the g’s felt remember that the g’s felt by the rider is the normal force on the seat of the rider divided by the mass then converted into g’s. As a rider enters a loop he will feel 2 forces. The real number of interest is the number if g’s felt by the passenger traveling in the vertical circle.

## How do you find tangential acceleration?

Linear or tangential acceleration refers to changes in the magnitude of velocity but not its direction, given as at=ΔvΔt a t = Δ v Δ t . at=Δ(rω)Δt a t = Δ ( r ω ) Δ t . The radius r is constant for circular motion, and so Δ(rω)=rΔω Δ ( r ω ) = r Δ ω .

## How do you find the speed of a roller coaster at the top of a loop?

For a roller coaster loop, if it were perfectly circular, we would have a minimum speed of vmin=√gR at the top of the loop where g=9.8m/s2 and R is the radius of the ‘circle’.

## What is the normal force at the top of a loop?

Normal force will be greatest at the bottom of the loop, smallest at the top, and somewhere in between those two values based on the angle of the centrifugal force + gravitational force to the surface.

## How fast would a car have to go to do a loop?

A little under 25 miles an hour, at least. You need the centripetal force required (mass times the square of speed divided by radius) to be equal to or greater than gravitational force (mass times the acceleration due to gravity (g)). The speed requires varies with the square root of the radius.

## What’s the minimum speed for a roller coaster car at the top of the loop if it’s to stay on the track?

1 Expert Answer To consider the minimum speed at the top of the track, the normal force should be zero. Then the only force that contributes to the centripetal force is the weight of the coaster.

## Is there kinetic energy at the top of a loop?

As the ball continues around the loop, its kinetic energy decreases while its potential energy increases. At the top of the loop, if the ball has sufficient kinetic energy, it can continue around the loop without leaving the track.