Sunday
April 20, 2014

Homework Help: Physics(Please respond)

Posted by Hannah on Saturday, June 2, 2012 at 8:49pm.

1) A roller coaster (398 kg) moves from A (3.82 m above the ground) to B (29.4 m above the ground). Two non-conservative forces are present: friction does -1.82 x 104 J of work on the car, and a chain mechanism does +5.49 x 10^4 J of work to help the car up a long climb. What is the change in the car's kinetic energy KEf - KEo from A to B?

Would I multiply both the distance and work done for both A and B and then subtract them?

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Physics 1 - Consider a roller coaster that moves along the track shown in the ...
Repost-Physics 1 - Consider a roller coaster that moves along the track shown in...
physics - A roller coaster of mass 1000.0 kg passes point A with a speed of 1.80...
Physics - we are doing a really dumb websearch in my Physics class on roller ...
Physics(Please respond) - 1) A roller coaster (398 kg) moves from A (3.82 m ...
physics - Consider a roller coaster as it travels near the bottom of its track ...
physics - The mass of a roller-coaster car, including its passengers, is 481 kg...
College Physics - The roller coaster in Figure P6.36 starts with a velocity of ...
Physics - Problem 2- A 350 kg roller coaster starts from rest at point A and ...
Math - A group of 378 people are standing in line to ride a roller coaster.If ...

Search
Members