Question 1 A young girl wants to play on the seesaw with her older brother, who weights three times as much as she does. Where should her brother sit in order to have the seesaw exactly balanced? He should sit half as close to the centre of the seesaw as she does. He should sit one-third as close to the centre of the seesaw as she does. He should sit three times as close to the centre of the seesaw as she does. Question 2 The figure above shows two rods attached to disks which are able to rotate freely. The rod on the left has weights attached to the ends of the rod, while the rod on the right has the same weights attached half way between the end of the rod and the centre. The disks and rods have the same mass, radius, and length. A rope is wrapped around each disk and tied to a block. The blocks have the same mass and are held the same height above ground. Both blocks are released simultaneously. Which hits the ground first? O The block attached to the disk on the right. O The block attached to the disk on the left. O Both blocks will hit the ground at the same time.Question 3 y A B 10 cm 10 cm C X The three objects shown in the figure above have masses given by A: 200.g B: 350. g C: 110. g- They are connected by massless, rigid rods. What are the coordinates of the centre of mass? (0 cm, 0 cm) (4.60 cm, 5.50 cm) O (6.97 cm, 8.33 cm) O (6.67 cm, 6.67 cm)Question 4 A B 10 cm 10 cm C X The three objects shown in the figure above have masses given by A: 180. g B: 300. g C: 50.0 g- They are connected by massless, rigid rods. Find the moment of inertia about an axis that passes through mass B and is perpendicular to the page. O 0.0660 kg m- O 0.0230 kg m2 O 0.00530 kg m2 O 0.00230 kg m2