(a)[1]
Complete the sentence. Select the correct word or phrase from the box. The metal triangle will settle with its centre of mass directly [BLANK] the point of suspension.
(b)[3]
Describe how the student finds the centre of mass of the card. Select from the following sentences: A A line is marked on the card to show the string’s position. B A pin fixed in a clamp is pushed through the hole in the card. C The centre of mass is the point where the lines meet on the card. D The procedure is carried out again with holes close to the other two edges. Complete the flow chart. Enter the letter of the correct sentence in each box.