# Physics

1.A mass is moving in uniform circular motion under the effects of a centripetal force. If the force is doubled and the radius is cut in half, by what factor will the speed change?

1. 👍 0
2. 👎 0
3. 👁 60
1. V^2/R is doubled, since the force doubles..
If R is also halved, V stays the same.
That allows V^2/R to double.

1. 👍 0
2. 👎 0
posted by drwls

## Similar Questions

1. ### Physics

please check these answers for me When an object is moving with uniform circular motion, the centripetal acceleration of the object a. is circular b. is perpendicular to the plane of motion c. is zero d. is directed toward the

asked by teamjakeward on February 15, 2009

A mass is moving in uniform circular motion under the effects of a centripetal force. If the force is doubled and the radius is cut in half, by what factor will the speed change? It will double.

asked by unknown on January 10, 2014
3. ### physics.. important stuff !

i still do not understand?? can someone please help me out??? (a) why is the centripetal force neede to keep a body moving in a circular path? (b) In what direction does a centripetal force accelerate the body on whic it acts??

asked by maria on January 15, 2007
4. ### physics

You create a centripetal force apparatus consisting of a mass m attached to the end of a string and spun in a uniform circular path of radius R, where R = 65.5 cm. The mass is spun in a uniform circular path for 60.0 seconds,

asked by Anonymous on September 26, 2016
5. ### PHYSICS - VERYYYY IMPORTANT!!!

VERY IMPORTANT FOR A PHYSICS PRESENTATION.. PLEASE HELP & EXPLAIN CLEARLY??? THANKS SO MUCH! (a) why is the centripetal force neede to keep a body moving in a circular path? (b) In what direction does a centripetal force

asked by Silvia on January 14, 2007
6. ### College Physics

What is the centripetal force acting on an object with a mass of 20 kg moving at a velocity of 10 m/s in a circle with a diameter of 5 m? When the object is moving with circular motion, are the forces balanced on the object? Why

asked by Nicole on February 6, 2015
7. ### physics

what is the centripetal force acting on an object with a mass of 10kg moving at a velocity of 5m/s in a circle with a diameter of 3m when the object is moving in a circular motion are the forces balanced on the object why or why

asked by Deanna on June 1, 2009
8. ### Physics

a mass of 100kg moves in a circular path of radius of 5cm with uniform speed of 20m/s.find the centripetal acceleration and centripetal force.

asked by Emmanuel Chinda on July 9, 2018
9. ### Colle physics

For an object in uniform circular motion, on what parameters does the experimental determination of the centripetal force depend when using F = ma

asked by Tessa on October 28, 2014
10. ### Physics 1

(I) determine the tangential and centripetal components of the net force excreted on the car(by the ground) when it accelerates at a uniform speed of 15 m/s in 11 s, moving on a circular track of radius 500m. The cars mass is

asked by Martin on May 18, 2013

More Similar Questions