A small toy car of mass m slides with negligible friction on a ''loop'' the loop track as shown in
Channel: Doubtnut
Date: 23/08/2020

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 ?img src="https://d10lpgp6xz60nq.cloudfront.net/physics_images/EAM_MEC_V01_C03_S01_036_Q01.png" width="80%"