Kinetic energy of golf club = 65J,
kinetic energy supplied to golf ball = 20% of 65 = 0.2 * 65 = 13J,
kinetic energy of ball = [mass * Velocity²]/2,
mass = 46gm = 0.046Kg,
[0.046 * V²]/2 = 13, or 0.046 *V² = 26,
V² = 26/0.046 = 565.22,
V = 23.77 m/sec = initial velocity of golf ball after hitting.
B
because it will pick it up while coming down not just flowing on low land<span />
Balancing.
When the same force is applied from both sides,the forces cancel out each other.
Every atom with 15 protons in its nucleus
is an atom of Phosphorus.
