Well if we divide both numbers by 5, you get 2 meters per second. Multply this by 3600seconds per hour and you get 7200 meters per hour. There are 1609.34 meters in a mile, so divide 7200 by 1609 to get 4.5 miles per hour
That would be the dump truck. Momentum depends on how heavy a certain object is in motion. The more weight it has the harder it is to stop.
KE = 1/2mv^2
KE = 1/2 (5kg)(3m/s)
KE = 22.5 J
A Electric Discharge is the release and transmission of electricity.
Hope I Helped! ( Smiles )
Answer
given,
mass of book = 0.305 Kg
so, from the diagram attached below
computing horizontal component
θ = 62.35°