S=125km
t=2h
v=s/t=125/2=62,5km/h
or 62,5/3,6=17,36m/s
The amount of movement, linear momentum, momentum or momentum is a physical quantity derived from a vector type that describes the movement of a body in any mechanical theory. In classical mechanics, the amount of movement is defined as the product of body mass and its velocity at a given time.
p= mv
Where,
m = mass
v = Velocity
Our values are given as,
Replacing we have that,
Therefore the momentum is 
Answer: Hydrogen
Explanation: Which element would you expect to gain one electron in a chemical reaction ? HYDROGEN
Non-metals are more likely to gain electrons!
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Answer:
His first law states that every object will remain at rest or in uniform motion in a straight line unless compelled to change its state by the action of an external force. In other words its inertia.
Explanation:
I’m pretty sure the answer would be D, sorry if it’s not correct!
