A uniform rod is 4m long and weight 10kg if it is supported on a knife edge at one metre from the end, what weight placed at that end keeps the rod horizontal ?

A uniform rod is 4m long and weight 10kg if it is supported on a knife

1.	A uniform rod is 4m long and weight 10kg if it is supported on a knife edge at one metre from the end, what weight placed at that end keeps the rod horizontal ?
Answer» 8 KG 10 kg 12 kg 16 kg Answer :B