At height h above the surface of Earth, the gravitational acceleration is What is h? Note: The radius of Earth is 6380 km.
1 answer:
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Answer:
m³/(kg⋅s²)
Explanation:
Hello.
In this case, since the involved formula is:
By writing a dimensional analysis with the proper algebra handling, we obtain:
Thus, answer is:
m³/(kg⋅s²)
Note that the [=] is used to indicate the units of G.
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Answer:
The deceleration is
Explanation:
From the question we are told that
The distance of the car from the crossing is
The speed is
The reaction time of the engineer is
Generally the distance covered during the reaction time is
=>
=>
Generally distance of the car from the crossing after the engineer reacts is
=>
=>
Generally from kinematic equation
Here v is the final velocity of the car which is 0 m/s
So
=>