A uniform plank of mass 80kg and length 60m rests horizontally on two supports P and Q where |PX| = 16m and |QY| = 36m. Objects of masses 20kg and 15kg are hanged at points M and N respectively where IMX| = 20m and INY|=12m. If the system remains in equilibrium under of these forces, calculate pressure exerted on;
i. P
ii. Q
Take g = 10ms^-2​
Please, it's due today so if anyone can help?