Newton's second law states that Fnet = ma, where Fnet is the net force applied, m is the mass of the object, and a is the object's acceleration. You have the values for Fnet and a, so you simply use this equation to solve for m, mass.
Answer:
To calculate Percent in fraction You need to do following steps.
Divide number by 100.
=20/100
=1/5
This website might help you.. https://www.quora.com/Why-mass-is-independent-of-range-of-projectile
