A 0.350 kg block is attached by a string to a post in the centre of a horizontal frictionless air table. The block revolves around the post with a constant speed of 5.00 m/s and takes 1.20 s for each rotation. a. Draw a fully labelled free body diagram of the block as it revolves. [3] b. Find the length of the string connecting the block to the centre. [1] c. Find the tension in the string while the block is rotating.