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Barbiealice8362
26.06.2020 •
Physics
g A small car travels up the hill with a speed of v = 0.2 s (m/s) where s is the distance measured from point A in meters. Determine the magnitude of the car’s acceleration when it reaches s = 50 (m) where the road’s radius of curvature is r
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Ответ:
The magnitude of the acceleration of the car when
is
.
Explanation:
The acceleration can be obtained by using the following differential equation:
Where
,
and
are the acceleration, speed and distance masured in meters per square second, meters per second and meters, respectively.
Given that
, its first derivative is:
The following expression is obtained by replacing each term:
The magnitude of the acceleration of the car when
is:
Ответ: