1/24/2012
Post date: Jan 24, 2012 2:54:0 PM
Bell ringer (verbal): How long would it take you to drive 60 miles if you average 60 mph in your car? How long to drive 120 miles? How long to drive 30 miles?
v = d / t examples
d = 50 meters, t = 100 seconds, v = ?
v = d / t = (50 m) / (100 s) = 0.5 m/s
v = 7 m/s, t = 15 seconds, d = ?
v = d / t
(t) v = d / t (t)
tv = d = (15s)(7m/s) = 105 m
v = 8 m/s, d = 24 m, t = ?
v = d / t
(t) v = d / t (t)
tv = d
tv / v = d / v
t = d / v = (24 m) / (8 m/s) = 3 sec
v = d / t worksheet