A small block of mass is released from rest at point A which is above the lowest…
PHYSICS · Multi-part · CBSE · Physics · Work, Energy and Power · Work, Energy and Power
Problem
A small block of mass 0.5kg is released from rest at point A which is 5.0m above the lowest point B of a smooth frictionless track. After passing through B the track rises smoothly to point C which is 2.0m above B. Neglect air resistance.
(i) Derive an expression for the speed v of the block at any point where its height above B is h.
(ii) Calculate the speed of the block at B.
(iii) Determine the speed of the block at C.
(iv) After leaving point C the block moves vertically upward without any further support. Calculate the maximum additional vertical height it will rise above C.