What speed does the car acquire when it is at rest with an acceleration of 20 m / s? If the distance traveled is 60m.
August 28, 2021 | education|
Initial data: the car started moving from a state of rest, therefore, V0 = 0 m / s; a (machine acceleration) = 20 m / s2; S (distance traveled by the car) = 60 m.
The speed that the machine under consideration will acquire can be expressed from the formula: S = V ^ 2 / 2a and V = √ (S * 2a).
Calculation: V = √ (60 * 2 * 20) = 49 m / s.
Answer: The car will acquire a speed of 49 m / s.
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