Posted by tonda on Friday, November 12, 2010 at 6:28pm.
A car travels along a straight road, heading east for one hour then traveling for thirty minutes on another road that leads northeast. If the car has maintained a constant speed of forty miles an hour, how far is it from its starting position

math  Henry, Saturday, November 13, 2010 at 4:49pm
X = hor = 40 mi/h * 1 h + 40 mi/h * 0.5 h * cos45 = 40 + 14.1 = 54.1 mi.
Y = ver = 40 mi/h * 0.5 h * sin45 = 14.1 mi.
tanA = Y/X = 14.1 / 54.1 = 0.2606,
A = 14.6 deg.
d = x / cosA = 54,1 / cos14.6= 55.9 mi.
from starting position.
8
Answer This Question
Related Questions
 Math  I have another problem that I don't know how to solve. A car travels ...
 hw  A car travels along a straight road, heading east for 1 h, then traveling ...
 Math  A car travels along a straight road, heading east for 1 h, then traveling...
 physical science  If a car goes along a straight road heading east and speeds ...
 physical science  If a car goes along a straight road heading east and speeds ...
 physics, dynamics  Car A starts from rest at t = 0 and travels along a straight...
 physics  I need help with this question. A car travels along a straight and ...
 Algebra  Yes. The car will travel 40 miles in an hour. A certain Car Travels 14...
 physics  Cars A and B are racing each other along the same straight road in the...
 Physics  A car with a mass of 900 kg moves along a road at a 89 km/hour at ...
More Related Questions