Tuesday
July 29, 2014

Homework Help: Physics

Posted by Miaow on Friday, August 31, 2012 at 7:31pm.

Could someone please review my answers and tell me if I am on the right track? Thank you!

A student drove to the university from her home and noted that the odometer reading of her car increased by 12.0 km. The trip took 18.0 min. (a) What was her average speed? (b) If the straight-line distance from her home to the university is 10.3 km in a direction 25.0o south of
east, what was her average velocity? (c) If she returned home by the same path 7 h 30 min after she left, what were her average speed and velocity for the entire trip?

a.) average speed: 12 km/18 min=0.67 km/min

b.) average velocity: (must find time first)

t: 10.3 km/ 0.67 km = 15.4 min

average velocity: 10.3 km/15.4 min = 0.67 km/min

c.) average speed: 24 km/450 min = 0.05 km/min

average velocity: 0 km/450 min = 0

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Discrete Math - (2) Suppose A is the set of students currently registered at the...
ALGEBRA 2 - Mrs. Smith drove at a rate of 45 mi/h from her home to her sister's ...
Home Economics/Science - Hi i just needed a little help with my Home Eco ...
math - integers - 5. Robert, a real estate agent, drove 170 kms north from his ...
INTEGERS - Starting at home a salesman drove 20km east, then 9km north, then 4km...
Algebra 2 review - Bob and Latoya both drove to a baseball game at a college ...
Types of Violence - Types of Violence For each of the following scenarios, write...
Statistics - A quiz consists of 10 questions. Each question is marked either ...
Math - Hi, would someone mind just checking the answer I got for this formula ...
Math HELP! - I posted a few questions and then went back and posted how I ...

Search
Members