How far does a vehicle with an average speed of 19.7 m/s travel in 30.9 minute?

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Answer 1 · 2017-09-19T21:01:24

#36523.8 m = 36.5238 km#

Start by converting all units to SI units:

#30.9# minutes# = 60*30.9 = 1854# seconds

Let #t_(t otal)# denote time, so #t_(t otal) = 1854 s#

Let #s_(avg)# represent average speed, so #s_(avg) = 19.7m/s#

Let #d_(t otal)# represent total distance traveled, in #m#

#s_(avg) = d_(t otal)/t_(t otal)#

Rearranging,
#d_(t otal) = s_(avg) * t_(t otal)#

#d_(t otal) = 19.7m/cancel(s) * 1854cancel(s) = 36523.8 m = 36.5238 km#