Purchase Solution

Average velocity

Not what you're looking for?

Ask Custom Question

Please give step by step answers please.

1) The position versus time for a certain object moving along the x-axis is shown. The object's initial position is -3meters.

The graph is position in meters for the y axis and the x axis is time in seonds.

Point one on the grpah for 0 sec. is at (0,-3), 1 sec at (1,3), 2 sec (2,9), 3 sec (3,6.1 approx), 4 sec (4,4), 5 sec (5,4), 6 sec (6,0), for 7 sec (7,-4) and for 8 sec (8,-2) and 9 sec (9,0)

1) Find the average velocity in the time interval 0 sec to 4 sec. Answer in units of m/s.

2) Find average velocity for 2 to 4 sec, then for 4 to 7 sec, and then for 0 to 9 sec please.


3) A person takes a trip driving with a constant speed 98.5 km/h except for a 15.1 min rest stop. If the person's average speed is 67.4 km/h, how much time is spent on the trip? Answer in units of h?

Purchase this Solution

Solution Summary

This solution is provided in 371 words. It describes the difference between average speed and average velocity, as well as demonstrates how to calculate average velocity and time spent on a trip.

Solution Preview

(1) There is some difference between average speed and average velocity.
The average speed of an object is defined as the distance traveled divided by the time elapsed. Velocity is a vector quantity, and average velocity can be defined as the displacement divided by the time. Velocity is a vector quantity, so in this case the time interval is 0 sec to 4 sec, so the time elapsed is 4 sec.

The object's position is -3m at 0 sec and 4m at 4 sec and the object moves in a ...

Purchase this Solution

Free BrainMass Quizzes
Intro to the Physics Waves

Some short-answer questions involving the basic vocabulary of string, sound, and water waves.

Basic Physics

This quiz will test your knowledge about basic Physics.

Variables in Science Experiments

How well do you understand variables? Test your knowledge of independent (manipulated), dependent (responding), and controlled variables with this 10 question quiz.

The Moon

Test your knowledge of moon phases and movement.

Introduction to Nanotechnology/Nanomaterials

This quiz is for any area of science. Test yourself to see what knowledge of nanotechnology you have. This content will also make you familiar with basic concepts of nanotechnology.