What is the SI (metric) unit of FORCE?
with symbol ( N )
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Answer:
speed and direction
Explanation:
Acceleration is the rate of change of speed and direction.
Answer:
The normal force will be lower than the gravitational force acting on the car. Therefore the answer is N < mg, which is <em>option B</em>.
Explanation:
Over a round hill, the centripetal force acting toward the the radius of the hill supports the gravitational force (mg) of the car. This notion can be expressed mathematically as follows:
At the top of a round hill

At the foot of a round hill

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