Figure shows the roller coaster track. Each car will start from rest at point `A` and will roll with negligible friciton. It is important that there should be at least some small positive normal force exerted by the track on the car at all points, otherwise the car would leave the track. With the above fact, the minimum safe value for the radius of curvature at point `B` is `(g=10m//s^(2) :`

A roller -coaster car a mass of 500 kg when fully loaded with passengers a. If the vehicle has a speed of 20.0ms^(-1) at point what is the force exerted by the track on the car at this point ? b. What is the maximum speed the vehicle can have point B and still remain on the track?

A roller -coaster car a mass of 500 kg when fully loaded with passengers a. If the vehicle has a speed of 20.0ms^(-1) at point A what is the force exerted by the track on the car at this point ? b. What is the maximum speed the vehicle can have at point B and still remain on the track?

A small toy car of mass m slides with negligible friction on a ''loop'' the loop track as shown in Fig.3E.32. The toy car starts from rest at a point H above the level of the lowest point of the track (a) If H = 2R , what normal force is exerted by the track on the toy car at point q?. What are the speed and normal force at point r ? (b) At what height will the ball leave the track and to what maxiumum height will it rise afterwards ? (c) If H = 4R , what is the speed and normal reaction reaction at point s ?

A small of mass m starts from rest at the position shown and slides along the frictionless loop the loop track of radius R. What is the smallest value of y such that the object will slide without losing contact with the track?

A small of mass m starts from rest at the position shown and slides along the frictionless loop the loop track of radius R. What is the smallest value of y such that the object will slide without losing contact with the track?

A small of mass m starts from rest at the position shown and slides along the frictionless loop the loop track of radius R. What is the smallest value of y such that the object will slide without losing contact with the track?

A small roller coaster starts at point A with a speed u on a curved track as shown in the figure The friction between the roller coaster and the track is negligible and it always remains in contact with the track. The speed of roller coaster at point D on the track will be

A small roller coaster starts at point A with a speed u on a curved track as shown in the figure The friction between the roller coaster and the track is negligible and it always remains in contact with the track. The speed of roller coaster at point D on the track will be