RT @Rainmaker1973
Momentum cancellation: a ball fired at 50 mph out of a cannon from a truck going exactly at 50 mph in the opposite direction, has its momentum cancelled https://buff.ly/2FB7PoC
RT @Rainmaker1973
Momentum cancellation: a ball fired at 50 mph out of a cannon from a truck going exactly at 50 mph in the opposite direction, has its momentum cancelled https://buff.ly/2FB7PoC