Wan and nurul sat on a see-saw. the see-saw is imbalanced because wan's mass is 45 kg while nurul's mass is 30 kg. suggest how nurul can balance the see-saw.

the chart show the masses and velocities of two colliding objects that stick together after a collision.

according to the law of conservation of momentum, the momentum of the object after the collision is  

answer

1,500

kg • m/s.

i think the answer is tomato juice? not entirely sure though

k2s for potassium sulphide