Question

The maximum horizontal range of a projectile is given by the formula where u is the initial velocity and g is the acceleration due to gravity. Find the velocity with which a ball can be thrown to have a maximum range of 20 meters when the acceleration due to gravity is equal to 9.8 m/s.

Answer 1

v=?

U=0

a=9.8m/s²

s=20m

V²=u+2as

v²=0+2*9.8*20

v²=392

v=✓392

v=19.789

v=19.80m/s