A wooden block of mass is kept on a smooth horizontal table
PHYSICS · Multi-part · A Level · Physics · Fields and their consequences · Fields and their consequences
Problem
A wooden block of mass 5kg is kept on a smooth horizontal table. A small brass cylinder of mass 200g is placed 20cm away from the centre of the block.
(i) Convert all the given quantities to SI units.
(ii) Calculate the magnitude of the gravitational force exerted between the block and the cylinder. Express your answer in scientific notation.
(iii) The brass cylinder has weight W. Find the ratio WF, where F is the force obtained in part (ii). Comment on whether the gravitational attraction between the two objects is significant compared with the weight of the cylinder.