[问答题]
A pendulum is launched fr
crglcl+pq5d(cd1a vpcul2zo 8f-78;om a point that
71+vls ytr0 c )h+hglris a height h above its lowest point in two different ways (Fig. 6–32). During both launches, the pendulum is given an initial speed of 3.0m/s On the first launch, the initial velocity of the pendulum is directed upward along the trajectory, and on the second launch it is directed downward along the trajectory. Which launch will cause it to swing the largest an
l )yg0h1+lcsv +rh 7rtgle from the equilibrium position? Explain.