Alice kicks a 0.25 kg soccer ball with 0.5 n of force. what force does the ball exert on alice’s foot as she kicks it? n

Recall Newton's third law of motion which states that, "In every action, there is always an equal and opposite reaction". When Alice kicks the ball with a force of 0.5N, in return the ball would also exert the same force to Alice's feet. These two forces are therefore equal in magnitude but are acted upon on different objects. 

Rain is pulled by gravity which is a non contact force

What formula  this one  (x_/