Homework Help: physics

Posted by Kim on Friday, January 15, 2010 at 9:55pm.

A car travels 0.90 km at an average speed of 84.8 km/h and then 0.97 km at an average speed of 41.6 km/h. What is the car's average speed during the 1.87 km interval?

physics - drwls, Friday, January 15, 2010 at 11:47pm
average speed = (distance travelled)/time

= (0.90 + 0.97)/[.90/84.8 + 0.97/41.6]
= 1.87 /(0.010613 + 0.023317)
= 1.87 / 0.03393
= 55.1 miles/hr
physics - prabhakar, Thursday, March 15, 2012 at 4:16pm
answer is same but concept could be more clear

Answer this Question

Related Questions

Physics - A car travels at an average speed of 83.2 km/h for 1.00 h and then at ...
physics - An airplane travels 2800 km at a speed of 700 km/h, decreases its ...
physics - Please help!!! A car travels 90.0 minutes on the highway. For the ...
PHYSICS - An odometer in a car has a reading of 50 km at the beginning of a trip...
Physics - Could someone please review my answers and tell me if I am on the ...
maths - If a van travels for a distance of 18 km at an average speed ...
maths - If a car travels for a distance of 16 km at an average speed ...
math - a cyclist travels the 30 km from Town A to Town B at an average speed of ...
physics - What is your average velocity if you drive a distance of 252.5 km at a...
Phyics Word Problems - Could you please check my work and help me with two of ...

For Further Reading

First Name:
School Subject:
Answer: