A 4800-kg truck traveling with a velocity of +4.0 m/s collides head-on
with a 1200-kg car traveling with a
velocity of -12 m/s. The truck and car
entangle and move together after the
collision. Determine the velocity of the truck and car immediately after collision

convex lenses are thicker at the middle. rays of light that pass through the lens are brought closer together (they converge). a convex lens is a converging lens. when parallel rays of light pass through a convex lens the refracted rays converge at one point called the principal focus.

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000