Physics, 19.11.2019 00:31 missbecca1229p6glel

An 80-kg quarterback jumps straight up in the air right before throwing a 0.43-kg football horizontally at 15 m/s . how fast will he be moving backward just after releasing the ball? sort the following quantities as known or unknown. take the horizontal direction to be along the x axis. mq: the mass of the quarterbackmb: the mass of the football(vqx)i: the horizontal velocity of quarterback before throwing the ball(vbx)i: the horizontal velocity of football before being thrown(vqx)f: the horizontal velocity of quarterback after throwing the ball(vbx)f: the horizontal velocity of football after being thrownobvioulsy the two massses are known and i assumed the speed of the football after being thrown and possibly before too? so what else am i missing?

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An 80-kg quarterback jumps straight up in the air right before throwing a 0.43-kg football horizonta...