Only if this is a position-time graph of one dimensional motion, can the velocity be determined from it.
Otherwise only the size of velocity called SPEED is determined by this graph's slope.
Velocity is a vector quantity requiring both a size and a direction. Only in 1-D motion can direction be determined from the graph (by virtue of the sign of the value).
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The slope of a position versus time graph is equal to the object’s velocity.
Slope = (yf – yi) ÷ (xf – xi)
Since the initial position is (0,0), slope = yf ÷ xf = 100 ÷ 4 = 25 m/s
Only if this is a position-time graph of one dimensional motion, can the velocity be determined from it.
Otherwise only the size of velocity called SPEED is determined by this graph's slope.
Velocity is a vector quantity requiring both a size and a direction. Only in 1-D motion can direction be determined from the graph (by virtue of the sign of the value).
It's the slope (change in position / change in time). Velocity = 25/1 m/s