Homework Help: physics

Posted by anon on Tuesday, September 27, 2011 at 5:47pm.

A car travels along a straight stretch of road. It proceeds for 14 mi at 50 mi/h, then 28.3 mi at 48 mi/h, and finally 37.4 mi at 38.3 mi/h.
What is the car’s average velocity during
the entire trip?
Answer in units of mi/h
Can u show the steps and answer to it, thanks.

physics - Steve, Wednesday, September 28, 2011 at 4:42am
To get the average speed during the entire trip, divide the total distance by the total time.

part 1: 14mi/50mph = 0.28 hr
part 2: 28.3mi/48mph = 0.59 hr
part 3: 37.4mi/38.3mph = 0.98 hr

total: 79.7mi/1.85hr = 43.1mi/hr

Answer this Question

Related Questions

physics - A car travels along a straight stretch of road. It proceeds for 14 mi ...
physics - A car travels along a straight stretch of road. It proceeds for 14 mi ...
physics - A car travels along a straight stretch of road. It proceeds for 15 mi ...
physics - A car travels along a straight stretch of road. It proceeds for 11.9 ...
physics - A car travels along a straight stretch of road. It proceeds for 15 mi ...
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...
physics - A car travels along a roadwith a speed of v=25 m/s (about 50 mi/h). ...
Physics - A car going 50mi/h overtakes and passes another car moving at 45 mi/h...
Algebra 1 - In a bike race, a rider covers a 5 mi flat stretch of road at a ...

For Further Reading

First Name:
School Subject:
Answer: