# Physics

A car travels at a constant speed around a circular track whose radius is 2.5 km. The car goes once around the track in 430 s. What is the magnitude of the centripetal acceleration of the car?

1. 👍 0
2. 👎 0
3. 👁 56
1. The centripetal acceleration is
a = V^2/R,

and the velocity V is given by
2*pi*R = V*P

where P is the period of 430 s.

The second equation can be used to eliminate the variable V, leaving you with

a = [2 pi R/P]^2/R = 4 pi^2 R/P^2

1. 👍 0
2. 👎 0
posted by drwls

## Similar Questions

1. ### Physics

A car travels at a constant speed around a circular track whose radius is 2.8 km. The car goes once around the track in 430 s. What is the magnitude of the centripetal acceleration of the car?

asked by Melanie on January 21, 2016
2. ### PHYSICS

A car travels at a constant speed around a circular track whose radius is 2.82 km. The car goes once around the track in 364 s. What is the magnitude of the centripetal acceleration of the car?

asked by Anonymous on October 12, 2015
3. ### physical science

A car travels at a constant speed around a circular track whose radius is 3.5 km.The car goes once around the track in 400 s.What is the magnitude of the centripetal acceleration of the car?

asked by nalim on December 16, 2015
4. ### Physics

A car travels at a constant speed around a circular track whose radius is 2.59 km. The car goes once around the track in 380 s. What is the magnitude of the centripetal acceleration of the car?

asked by Emily on March 29, 2016
5. ### physics

A car travels at a constant speed around a circular track whose radius is 2.87 km. The car goes once around the track in 332 s. What is the magnitude of the centripetal acceleration of the car?

asked by BrookeNeed on October 31, 2016
6. ### PHYSICS

A car travels at a constant speed around a circular track whose radius is 3.1 km. The car goes once around the track in 280 s. What is the magnitude of the centripetal acceleration of the car?

asked by Joshua on September 30, 2010
7. ### Physics

A car travels at a constant speed around a circular track whose radius is 2.5 km. The car goes once around the track in 430 s. What is the magnitude of the centripetal acceleration of the car? m/s2

asked by Will G on April 2, 2008
8. ### Physics

A car travels at a constant speed around a circular track whose radius is 2.9 km. The car goes once around the track in 380 s. What is the magnitude of the centripetal acceleration of the car?

asked by Angela on October 23, 2010
9. ### physics

A car travels at a constant speed around a circular track whose radius is 2.1 km. The car goes once around the track in 320 s. What is the magnitude of the centripetal acceleration of the car? 1 m/s2

asked by Anonymous on November 6, 2012
10. ### physics

A car travels at a constant speed around a circular track whose radius is 2.60 km. The car goes once around the track in 344 s. What is the magnitude of the centripetal acceleration of the car?

asked by Joe on February 13, 2012

More Similar Questions