Question

1a) An archer pulls back on his bow string with a draw force of 162N. When the archer releases the string, it remains in contact with the arrow for 12.4 ms. What impulse is given to the arrow by the bow? 1b) At what speed is an 11.9-g arrow shot? 1c) What is the arrow's kinetic energy immediately after being shot? 1d) The arrow pierces an 123-g apple at the same height at which it was originally shot. Assuming a sticky collision, what is the final velocity of the combined arrow/apple system? 1e) The archer fires a second arrow under the same conditions, only this time, the arrow passes straight though the apple, exploding the apple into 3 equal masses. If the first piece of apple flies off in the +x direction at 5 m/s, and the second piece flies off in the +y direction at 2.4 m/s, what is the speed of the third piece? 1f) In what direction does the third apple piece fly? Give your answer as a positive answer.

Answer 1

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