Why is it harder to lift a 100-pound sack of rice than to lift a 5-pound bag of sugar?

1 pound mass is equivalent to 0.454 kg mass

now the weight of the object of mass 1 pound will be

now force required to pull upward a 100 pound sack will be given as

Also we can say that force required to pull a bag of 5 pound mass will be

so here we can see that 22.2 N force is very small as we compare it with 445 N this is the reason it is easy to pull 5 pound bag of sugar then 100 pound sack of rice

a=d/t

a="triangle"v/t

explanation:

a = acceleration