jUAN

Tarzan (M= 75 KG) TRIES TO CROSS A RIVER BY SWIMMING FROM A 10.0 M LONG VINE. hIS SPEED AT THE BOTTOM OF THE SWING, JUST AS HE CLEARS THE WATER, IS 4.0 M/S. Tarzan DOESENT KNOW THAT THE VINE HAS A BREAKING STRENGHT OF 1.0X10N. WHAT IS THE TOTAL FORCE Tarz...