The answer to this question is N 2325 lb Lets see what happ

The answer to this question is N = 232.5 lb

Let\'s see what happens to a skateboard rider as she starts down the track. Treat the 70 lb rider as a mass particle that slides down the track in a friction-free manner. Use conservation of energy to determine her velocity when theta = 45 degree and then apply a force balance using polar coordinates to determine the normal force between the skater and the track. Comment on the result.

Solution

Moment of a mass particle ( in this case a man) across a curved platform at certain speed will have two components of force (Centrifugal force).

One component will push the man into the curved surface and the other will drive him down the curved surface.

The resultant of these will be at an angle to the curved surface facing downwards.

The Normal force between the skater and the curved surface is higher than the mans\'s weight due to this resultant centrifugal force. In more known words, its the G force.

For example, A pilot experiences G force during his flight travel. It is a function of outward force component of the mass particle due to the virtue of its inertia.