Home > APCALC > Chapter 12 > Lesson 12.3.1 > Problem 12-92
12-92.
A projectile is launched from the ground at a
Write the velocity vector as a function of
. Calculate the magnitude of the velocity vector at
and at the moment when the projectile hits the ground. Make a conjecture about the speed with which projectiles returns to earth. To determine when the projectile hits the ground, solve
. The velocity vector when
is: Sketch this vector and use the Pythagorean Theorem to determine its magnitude.