Answer:
Explanation:
Truck velocity=50 km/hr
police car velocity =45 km/hr
Let they start at t=0 s
After one hour
truck displacement
In vector Form
For Police car displacement
in vector form


Explanation:
A molecule can be made up from same or different elements. Whereas a compound will have different atoms.
Therefore, the difference between a molecule and a compound is that a compound is made up of atoms from different elements.
For example,
is a molecule and NaCl is a compound.
And a chemical change creates a new substance.
I can conclude that the aluminum heats up faster then the water, since how they are made up is more different, each has a different compound to it, plus water is more denser<span />
To bring something to a stop the same force that was applied to speed it up can be used to stop it. If a greater force is used it will stop quicker.