Umm 20 kg?
-- "20 kg" is the child's mass, not her weight.-- The car's mass doesn't matter.The child's momentum is (M V) = (20) (10) = 200 kilogram-meters per second.
33 kg
Use the momentum equation! ∑M * V = (20 + 1000)(10) = 10,200
what is the body surface area for a child who is 80 cm and weighs 4kg
An 8 year old child should weigh approximately 30-40 Kg's in normal weight but please do not worry if you/your child is over or under weight.
Think so its 65 kg
20 liters of water (at sea level)
54 kg..
65-70 kgs is the best
Well....... About 60-150 Just kidding I don't know
what is average weight for girl of 139cm tall