If a car weighing 1500 kg and a truck weighing 4000 kg are both traveling at 55 miles per hour which one will take more force to stop

The truck will require force to stop:

Force equals Mass x Acceleration (F = m * a)
Both vehicles will need to decelerate by 55 miles per hour, so the one with a greater mass, m, will require more force to stop. The truck has a mass of 4000 kg, which is greater than the car's 

The same amount of force can stop both the car and the truck. But it would take longer to stop the truck, because the truck has more mass, so the acceleration of the truck would be smaller.

The best answer is (a) which is universal law is in effect at all times. it is constantly at play in everything we do and governs our lives. it is also important to note that universal law applies to not only everything on earth, but everything in the universe as well, which is another reason why it is in effect at all times.

Multiply the 3 dimensions, assuming it is a rectangular cuboid, to get the volume in cm³ divide mass by volume to get density in g/cm³