Homework Help: Math

Posted by Jessica on Wednesday, April 13, 2011 at 12:33am.

A car travels along a straight road, heading east for 1 h, then traveling for 30 min on another road that leads northeast. If the car has maintained a constant speed of 48 mi/h, how far is it from its starting position? Round your answer to 2 decimal places.

Math - Henry, Friday, April 15, 2011 at 10:11pm
d1 = 45m/h * 1h = 45mi @ 0 deg.

d2 = 45m/h * 0.5h = 22.5mi @ 45deg.

X = hor. = 45 + 22.5cos45 = 60.91mi.

Y = ver. = 22.5sin45 = 15.91mi.

d^2 = X^2 + Y^2,
d^2 = (60.91)^2 + (15.91)^2 = 3963.16,
d = 62.95mi.

Answer this Question

Related Questions

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 one hour then ...
Physics - A police car is traveling east at 40.0 m/s along a straight road, ...
physics - I need help with this question. A car travels along a straight and ...
physics, dynamics - Car A starts from rest at t = 0 and travels along a straight...
PHYSICS - A car is traveling around a circular banked road without friction ...
physics - A car travels along a roadwith a speed of v=25 m/s (about 50 mi/h). ...
Physics - A car is being driven along a country road on a dark and rainy night ...
Math - A semi-truck travels on a paved road for 2 hours at an average speed of ...
physics - A car goes around a curve on a road that is banked at an angle of 30.5...

For Further Reading

First Name:
School Subject:
Answer: