Got Homework?
Connect with other students for help. It's a free community.
Here's the question you clicked on:
 0 viewing
A 600kg car is going over a curve with a radius of 120 meters that is banked at an angle of 25 degrees with a speed of 30 meters per second. The coefficient of static friction between the car and the road is 0.3. What is the normal force exerted by the road on the car? a) 7240 N b) 1590 N c) 5330 N d) 3430 N e) 3620 N
 one year ago
 one year ago
A 600kg car is going over a curve with a radius of 120 meters that is banked at an angle of 25 degrees with a speed of 30 meters per second. The coefficient of static friction between the car and the road is 0.3. What is the normal force exerted by the road on the car? a) 7240 N b) 1590 N c) 5330 N d) 3430 N e) 3620 N
 one year ago
 one year ago

This Question is Open

VincentLyon.FrBest ResponseYou've already chosen the best response.0
First thing to do is draw a freebody diagram of the situation.
 one year ago

jufetluzBest ResponseYou've already chosen the best response.0
you can use the formula tan (theta) = v²/gR where theta is your angle, v is your velocity, g the acceleration due to gravity and R your radius
 one year ago

VincentLyon.FrBest ResponseYou've already chosen the best response.0
This formula will give you the velocity for which friction is zero, but it will not provide an answer to the question.
 one year ago

viniterranovaBest ResponseYou've already chosen the best response.0
What´s is the value for G force?
 one year ago

viniterranovaBest ResponseYou've already chosen the best response.0
Try to use the Diagram for solve the problem.
 one year ago

viniterranovaBest ResponseYou've already chosen the best response.0
Here is the answer.
 one year ago

VincentLyon.FrBest ResponseYou've already chosen the best response.0
@Dikawar You went right, but it is even easier to project along the normal of the road:  only one projection needed  no system to solve for N, as f does not appear in the equation.
 one year ago

VincentLyon.FrBest ResponseYou've already chosen the best response.0
@Dikawar Have a look at the solution I wrote here (you'll have to scroll down to the one with the drawing): http://openstudy.com/study?version=feed:joinstudygroup&referrer=mit%208.01%20physics%20i%20classical%20mechanics,%20fall%201999&domain=ocw.mit.edu#/updates/50bc2ea4e4b0bcefefa06b4d
 one year ago

VincentLyon.FrBest ResponseYou've already chosen the best response.0
*sorry @Diwakar
 one year ago

DiwakarBest ResponseYou've already chosen the best response.0
@VincentLyon.Fr Thanks! Your method is much better and easier .
 one year ago
See more questions >>>
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.