1. A 1.4 x 103kg car is westbound at a velocity of 37.0 km/h when it collides with a 2.0 x 10kg truck northbound at a velocity of 35 km/h. If these two vehicles lock
together upon collision, what is the initial velocity of the vehicles after collision?

answer would be letter choice (a),   a ball resting on a shelf. would be another example of potential energy   >   stored energy > not moving.

a ball spinning on a finger   >   kinetic energy > moving energy

a ball rolling on the ground   >   kinetic energy   > moving energy

a   ball flying through the air   > kinetic energy   >   moving energy

hope that                                         : )

distance = 150m

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

root(2500+10000)

root 125000