A projectile is launched straight up at 101 m/s. How fast is it moving at the top of its trajectory?
A cannonball launched with an initial velocity of 131 m/s at an angle of 45° follows a parabolic path and hits a balloon at the top of its trajectory. Neglecting air resistance, how fast is it going when it hits the balloon?
m/s
What is the acceleration of the cannonball just before it hits the balloon?
m/s2