avgvelocity=displacement change/time
=(finalpos-initialposit)/(finaltime-initialtime)
= (-4.3-3.2)/(6.1-3.8)=(-7.5/2.3) cm/s
A rolling ball moves from x1 = 3.2 cm to x2 = -4.2 cm during the time from t1 = 3.8 s to t2 = 6.1 s. What is its average velocity?
2 answers
average velocity is
total displacement
-----------------
total time
(x2-x1)/(t2-t1) = -7.4cm/2.3s = -3.2cm/s
total displacement
-----------------
total time
(x2-x1)/(t2-t1) = -7.4cm/2.3s = -3.2cm/s
1 answer