There is no set amount that a person should be able to lift based on their body weight.
Instead of adding a 25 pound weight, and then 2 ten pound weights, it would be much easier to add a 45 pound weight. A 45 pound weight is standard in every gym, and not everyone can lift 10 more pounds if there was a fifty pound weight (five extra pounds on each side totals to 10 more pounds to lift).
it took 53 12" helium balloons to lift a pound, you have to add the weight of the string and balloons
one pound
The amount that a healthy person can lift depends on their height and weight.
Depends how hard the ping pong ball is.
kids 10-12 should lift 8 or 9 pounds adults if you are strong you should lift 20-35 pounds.
about 100 pounds
83-87 lbs
Yes it does. The more weight that there is in the rocket, the more energy it takes to lift off. Its the same as if you raised your hand above your head and it's empty. Put a ten pound weight in it and you have to exert more energy to lift it.
you should be able to do 8 to 10 reps and when you can do it 8 to 10 times you need to add weight to your bar if you want to gain muscle.
Let the 5 year old lift 100 pound weights and he will lose tons of weight