If a projectile is launched with a speed of 10 m/s from the bottom of a ramp of height h angled 30°, at what speed does the projectile hit the ground?
a) At the same speed and the same angle
b) At the same speed, but at a different angle
c) At the speed at which it left the top of the ramp
d) It never hits the ground. 10 m/s is greater than the escape velocity required to put the projectile into orbit.
5. Car A, having a mass of 1000 g, is moving 1 m/s to the right, while Car B, having a mass of 500 g, is moving to the left at 0.5 m/s. If the two cars couple upon impact, what is their final combined velocity?
a) 0.75 m/s
b) 0.5 m/s
c) -0.5 m/s
d) 0.8333 m/s
e) 1.0 m/s