Can an Object Maintain Constant KE and Experience Net Acceleration?

[icanletyougo]

Homework Statement

Is it possible for an object to experience a net acceleration, yet maintain a constant kinetic
energy?

Homework Equations

The Attempt at a Solution

I think no because the kinetic energy equation is KE = (0.5)mv^2, because KE is not change, so v will not change; therefore, it will have acceleration equal =0.
But I'm not sure.

 

[gneill]

What type of motion has a constant acceleration yet never goes any faster?

Hint: Think of something other than straight-line motion.

 

[icanletyougo]

What type of motion has a constant acceleration yet never goes any faster?

Hint: Think of something other than straight-line motion.

circular motion?

 

[gneill]

circular motion?

Okay. What's your argument as to why this is so?

 

[ashishsinghal]

What type of motion has a constant acceleration yet never goes any faster?

Will you consider centripetal acceleration constant. It keeps changing directions.

 

[gneill]

Will you consider centripetal acceleration constant. It keeps changing directions.

True, but it's a constant magnitude and the kinetic energy does not change.