Can a net force be applied to an object and still have the object maintain constant speed. Explain.
A) No, a net force accelerates an object.
B) No, a net force will always slow down the object.
C) Yes, a net force does not always acelerate an object.
D) Yes, if the net force is perpendicular to the motion of the object it will only change its direction.

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Slipknot Slipknot · Answer 1 · 2018-02-13T19:05:00+01:00

D. "Yes, if the net force is perpendicular to the motion of the object it will only change its direction."

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Melanitta Melanitta · Answer 2 · 2018-08-01T05:46:51+02:00

It is true that net force accelerate the objects

and acceleration is due to change of velocity

Now velocity has two parts speed and direction

as velocity is a vector quantity which has magnitude (speed) and direction

so change of speed will change the velocity and change of direction also change the velocity

IF speed is constant and direction is changing it means velocity is changing

and if velocity is changing it means there is acceleration and net force is acting on it

like in circular motion

even if we have constant speed in circular motion there is change in direction because force is acting there

So here option D is correct

Yes, if the net force is perpendicular to the motion of the object it will only change its direction.