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A trebuchet was a hurling machine built to attack the walls of a castle under siege....

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Physics

A trebuchet was a hurling machine built to attack the walls of acastle under siege. A large stone could be hurled against a wall tobreak apart the wall. The machine was not placed near the wallbecause then arrows could reach it from the castle wall. Instead,it was positioned so that the stone hit the wall during the secondhalf of its flight. Suppose a stone is launched with a speed ofv0 = 25.0 m/s and at an angle ofθ0 = 41.0°. What is the speed of the stone ifit hits the wall (a) just as it reaches the top ofits parabolic path and (b) when it has descendedto half that height? (c) As a percentage, how muchfaster is it moving in part (b) than in part(a)?

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4.1 Ratings (828 Votes)
given Vo 25 mstake g 981 ms2 acceleration due to gravity Take apart the horizontal and vertical components of thevelocitythe horizontal component will be constant because there is noair resistance and no horizontal forces acting on itbut the vertical component changes due to gravity actingdownwardsso nowVox Vo cos 25 cos 25 07547 1886773    See Answer
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