Football game customarily begins with a coin toss to determine who kicks off. the referee tosses the coin up with an initial speed of 5 m/s. in the absence of air resistance, how high does the coin go above its point of release? hint: draw the co-ordinate system. note that the object is moving upwards, but the acceleration is downwards. they will have opposite signs, unline the rock in the well problem done in class where the rock fell in the downward direction and the velocity and acceleration were in the same direction.