Wednesday

April 16, 2014

April 16, 2014

Posted by **Sam** on Saturday, July 10, 2010 at 5:58pm.

(a) If the train goes around a curve at that speed and the acceleration experienced by the passengers is to be limited to 0.060g, what is the smallest radius of curvature for the track that can be tolerated?

(b) At what speed must the train go around a curve with a 0.50 km radius to be at the acceleration limit?

- Physics -
**Sam**, Saturday, July 10, 2010 at 6:26pma) Use the formula a=(v^2)/r

a=.060g

g=9.8 m/(s^2)

so a=.588 m/s^2

v=216km/hr * 1hr/3600s * 1000m/1km = 60m/s

.588=(60^2)/r

solve for r, r = 6122.44898

b)Use the formula a=(v^2)/r

a=.060g

g=9.8 m/(s^2)

so a=.588 m/s^2

r=.50km * 1000m/1km =500m

.588=(v^2)/500

solve for v, v= 17.146 m/s

**Related Questions**

AP PHYSICS - The fast train known as teh TGV that runs south from Paris, France...

Math - Train A and train B leave station going in opposite directions. Train B ...

math - A passenger train travelled at an average speed of 72 km/h. A man on the ...

physics - A train slows down at a constant rate as it rounds a sharp circular ...

physics - On a 120 km track, a train travels the first 30 km at a uniform speed ...

physics help pleased - Two trains on separate tracks move toward one another. ...

algebra - the speed of train A is 8 mph slower than the speed of train B. Train ...

physics - A red train traveling at 72 km/h and a green train traveling at 144 km...

physics - A red train traveling at 72 km/h and a green train traveling at 144 ...

Physics - A train travels 84 km/h when it reaches a slower train 47 meters ahead...