<span>The moving car has some momentum, but
the stationary truck has none.
Momentum of any object is (mass) times (speed).
If the object isn't moving then it has no speed,
and its momentum is zero, no matter how much
mass it may have.</span>
If their volumes are equal, then the denser one has more mass.
Answer:
Written in Python
def energyvector(mass):
c = 2.9979 * 10**8
energy = mass * c ** 2
print(round(energy,2))
Explanation:
This line defines the function
def energyvector(mass):
This line initializes the speed of light
c = 2.9979 * 10**8
This line calculates the corresponding energy
energy = mass * c ** 2
This line prints the calculated energy
print(round(energy,2))
Answer:
Fint = - 67.094 N
Explanation:
Given
W = 71.4 N
∅ = 20º
Fint = ?
The interaction partner of the Normal Force has equal magnitude and opposite direction to the Normal Force, and it is a contact force exerted by the crate on the ramp, because the interaction parteners are the same force acts on the two object.
Then: Fint = - N = - Wy' = - W*Cos ∅
⇒ Fint = - 71.4 N*Cos 20º = - 67.094 N