The body moves in a straight line according to the law s = 3t ^ 2 + t + 1. Find its initial velocity.
| June 26, 2021 | education
These problems: the law of rectilinear motion of the body under consideration: S (t) = 3t ^ 2 + t + 1.
1) The law of change in the speed of the body under consideration: V (t) = S (t) ‘= (3t ^ 2 + t + 1)’ = 3 * 2 * t + 1 + 0 = 6t + 1.
2) Initial speed: V (0) = 6 * 0 + 1 = 1 m / s.
Answer: The initial speed was 1 m / s.
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