You launch a ball in the air with an initial velocity of 25 m/s. What is the final velocity when it hits the ground?
A. 20 m/s
B. 25 m/s
C. 20 mihr

Aprojectile is launched from ground level with an initial velocity of v 0 feet per second. neglecting air resistance, its height in feet t seconds after launch is given by s equals negative 16 t squared plus v 0 t. find the time(s) that the projectile will (a) reach a height of 192 ft and (b) return to the ground when v 0equals112 feet per second. (a) find the time(s) that the projectile will reach a height of 192 ft when v 0equals112 feet per second. select the correct choice below and, if necessary, fill in the answer box to complete your choice.

You've already seen the value of 9.8 in this lesson. what's this value called? what quantity does it represent?

What kind of simple machine is a catapult?