Posted by HELP HELP MNHS on Monday, December 17, 2012 at 7:20am.
A car travels 20 km/h faster than a truck. The car covers 360 km in 3 hours less time than the truck.Find the speed of the truck.
(kindly write the solution, thanks alot)

distance problem  Damon, Monday, December 17, 2012 at 8:09am
vc = vt + 20
tc = tt  3
360 = vc tc = (vt+20)(tt3)
360 = vt tt so tt = 360/vt
360 = (vt+20)(360/vt  3)
360 vt = (vt+20)(3 vt +360)
360 vt = 3 vt^2 60 vt + 360 vt + 7200
3 vt^2 + 60 vt 7200 = 0
vt^2 + 20 vt  2400 = 0
(vt+60)(vt40) = 0
vt = 40

distance problem  HELP HELP MNHS, Monday, December 17, 2012 at 4:38pm
sir what do you mean by vt and tt, vc and tc... tnx....

distance problem  imcool, Tuesday, August 11, 2015 at 7:47am
yeah
Answer This Question
Related Questions
 ALGEBRA  A car travels 20 kph faster than a truck. The car covers 350 km in two...
 physics  A motor car moving at a speed of 72 km/h can not come to a stop in ...
 physics  a car and a truck starts from rest at the same instant with the car is...
 Physics  a car and a truck start from rest at the same instant with the car ...
 Physics  A car and a truck starts from rest at the same instant, with the car ...
 physics  The driver of a car wishes to pass a truck that is traveling at a ...
 Physics  b) If the car is moving much faster than the heavier truck when they ...
 Physics  A truck travels at a constant speed of 28.0 m/s in the fast lane of a ...
 distance problem  A car and a truck left Washington, DC traveling in opposite ...
 physics  Initially a small car and a truck are at rest then the car starts ...
More Related Questions