Answer:
We assume the second train was standing still and that momentum is conserved.
Then the product of mass and velocity before the collision is
(5000 kg)·(100 m/s) = 500,000 kg·m/s.
After the collision, where M is the mass of the second train, the momentum is
((5000+M) kg)·(50 m/s) = 500,000 kg·m/s
Dividing by 50 m/s and subtracting 5000 kg, we have
(5000 +M) kg = 10,000 kg
M kg = 5000 kg
The mass of the second train is 5000 kg
Naturally occurring.
inorganic.
solid.
definite chemical composition.
ordered internal structure.
Answer:
Explanation:
As per given figure let say the tip of the shadow is at distance "x" from the base of the lamp
so here we have
so we have
now we have
The answers to question 4 d