If the motion is parabolic, is the final speed calculated using both directions?

A: A We can use one direction to solve for the final speed

B: peed is the same in both directions

C: C Horizontal velocity is always changing

D: D Final speed is the resultant of both the horizontal and vertical speeds

Projectiles have both a vertical and horizontal velocity. While horizontal velocity remains constant, it’s the VERTICAL velocity that is changing thus B and C are incorrect. The final speed will be the vector SUM of the horizontal and vertical velocities which is why D is correct and A is incorrect. Two find the sum of two velocity vectors you must use the Pythagorean theorem.

If the motion is parabolic, is the final speed calculated using both directions?

If the motion is parabolic, is the final speed calculated using both directions?

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