Help. “What is the particles acceleration at t=3.0 s?”
1 answer:
Answer:
-2 m/s²
Explanation:
Acceleration is the rate of change of velocity:
a = Δv / Δt
In other words, it's the slope of the line on a velocity-time graph. The line at t=3 also goes through the points (2, 4) and (4, 0).
a = (4 m/s − 0 m/s) / (2 s − 4 s)
a = -2 m/s²
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