A rolling ball moves from x1 = 8.5cm to x2 = -4.2cm during the time from t1 = 3.0s to t2 = 6.7s
What is its average velocity over this time interval?
average velocity is defined as the total displacement
travelled during a time interval
Vavg = total displacement / time interval
Vavg = (x2-x1)/(t2-t1)
x1 , x2 are the positions of the particle at times t1 &
t2
Vavg = (-4.2-8.5)/(6.7-3)
Vavg = -3.42 cm/s
A rolling ball moves from x1 = 8.5cm to x2 = -4.2cm during the time from...
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