Physics
posted by teamjakeward
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 center of motion
D
What is the term for the net force directed toward the center of an object's circular path?
a. circular force
b. centrifugal force
c. centripetal force
d. orbital force
C
Which of the following can be a centripetal force?
a. friction
b. gravity
c. tension
d. all of the above
D
When an object is moving with uniform circular motion, the object's tangential speed
a. is circular
b. is perpendicular to the plane of motion
c. is constant
d. is directed toward the center of motion
i'm not really sure about this one..
thanks :)

drwls
I don't see how friction can be a centripetal force. It opposes the direction of motion. Gravity and tension both can be centripetal forces.
For the last question, the speed is constant (c). The answer "a" looks tempting, but speed does not have a shape.
Your other answers are correct.
Respond to this Question
Similar Questions

physics.. important stuff !
i still do not understand?? can someone please help me out? 
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 not 
physics  uniform circular motion
Explain why the kinematics equations which describe the motion of the object that has constant acceleration cannot be applied to uniform circular motion. 
College Physics
A concept question: Suppose that the centripetal force acting on an object in circular motion were increased to a new value, and the object remained in circular path with the same radius. How would its motion be affected? 
physics
For circular motion in the vertical plane, what is the centripital acceleration at the bottom of the circle? 
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? 
physics
One of the conditions for Uniform Circular Motion is that the acceleration be centripetal and directed toward the center of motion. What would the effect be of a nonzero acceleration parallel to the tangential velocity? 
physics
An airplane is flying above the Earth's surface at a height of 10.5 km. The centripetal acceleration of the plane is 16.4 m/s2. What is the angular velocity of the plane moving in uniform circular motion? 
physics
An airplane is flying above the Earth's surface at a height of 9.30 km. The centripetal acceleration of the plane is 18.2 m/s2. What is the angular velocity of the plane moving in uniform circular motion? 
Physics
An airplane is flying above the Earth's surface at a height of 10.9 km. The centripetal acceleration of the plane is 16.7 m/s2. What is the angular velocity of the plane moving in uniform circular motion?