lilydaisy15
Sep14-04, 07:44 PM
hey guys I have this extra credit problem that i NEED help with !!
thanks for everything guys!!
To protect his food from hungry bears, a boy scout raises his food pack with a rope that is thrown over a tree limb at height h above his hands. He walks away from the vertical rop with constant velocity, (vboy), holding the free end of the rope in his hands. (a) Show that the speed, v, of the food pack is iven by x(x^2+h^2)^-(1/2) ,vboy, where x is the distance he has walked away from the vertical rope. (b) show that the acceleration a of the food pack is h^2(x^2+h^2)^-(3/2) v^2boy. (c) what vlues do the acceleration a and velocity v have shortly after he leaves the point under the pack (x=0)? (d) what values do the pack's velocity and acceleration as the distance x continues to increase?
thanks for everything guys!!
To protect his food from hungry bears, a boy scout raises his food pack with a rope that is thrown over a tree limb at height h above his hands. He walks away from the vertical rop with constant velocity, (vboy), holding the free end of the rope in his hands. (a) Show that the speed, v, of the food pack is iven by x(x^2+h^2)^-(1/2) ,vboy, where x is the distance he has walked away from the vertical rope. (b) show that the acceleration a of the food pack is h^2(x^2+h^2)^-(3/2) v^2boy. (c) what vlues do the acceleration a and velocity v have shortly after he leaves the point under the pack (x=0)? (d) what values do the pack's velocity and acceleration as the distance x continues to increase?