What is the approximate momentum of a car with a mass of 1200 kg and a velocity of 30.0 km/h? *
A. 13.0 N. S
B. 40.0 N. S
C.3.60 104 N. S
D. 5.40 x 104 N. S

Aboxcar traveling at 12 m/s approaches a string of 5 identical boxcars sitting stationary on the track. the moving boxcar collides and links with the stationary cars and they all move off together along the track. what is the final speed of the cars immediately after the collision? (you may take the mass of each boxcar to be 18,537 kg.)

What property of an object determines its inertia?

The statue of liberty is 305.5 feet high. when the angle of elevation of the sun is 50 , what is the distance to the tip of the shadow from a point at water level and directly below the highest point of the statue?