i know if it were fired straight up the trajectory would be 0 meters/sec but i have NO clue how to figure out the speed at the top of trajectory would be if its fired at an angle.
explain please!!
2007-12-11 08:56:35 · 2 answers · asked by sharpieharpie 1 in Science & Mathematics ➔ Physics
Given the usual assumptions ( no air resistance, et cetera ) the velocity at the top of the arc is entirely horizontal and equal to the initial velocity multiplied by the cosine of 45 degrees.
2007-12-11 09:00:46 · answer #1 · answered by jgoulden 7 · 0⤊ 0⤋
The horizontal component of the object's speed does not change. Use vecor analysis to find the horizontal component of the speed.
Draw a right triangle with the right angle on the bottom left and a 45 degree angle on the bottom right.
cos 45 = total velocity / the horizontal component
2007-12-11 09:02:33 · answer #2 · answered by DanE 7 · 0⤊ 0⤋