College Physics with MasteringPhysics 7th Edition by Jerry Wilson,Anthony Buffa,Bo Lou

تمرين 27

This time, William Tell is shooting at an apple that hangs on a tree (Fig.). The apple is a horizontal distance of 20.0 m away and at a height of 4.00 m above the ground. If the arrow is released from a height of 1.00 m above the ground and hits the apple 0.500 s later, what is the arrow's initial velocity

FIGURE Hit the apple See Exercise. (Not drawn to scale.)