Applying a force perpendicular to an object moving in the x direction.

[pb23me]

Homework Statement

consider an object moving in the x direction.(1) I f you were to apply a force perpendicular to the x direction, would the magnitude of the velocity of the object in the x direction change?(2) would the magnitude of the velocity in the y direction change.(3) if you were to constantly apply a force perpendicular to the motion of an object, would the magnitude of the velocity of the object change?(4) would the direction of the velocity change? this isn't really a homework question just some stuff I am trying to understand...

Homework Equations

The Attempt at a Solution

(1) i don't think it would,just the direction(2)yes i think so(3)idk(4)yes

 

[PhanthomJay]

Yes, you have the answers correct for 1, 2, and 4 (although it appears you are unsure). Regarding (3), think of this as a projectile motuion problem.

 

[pb23me]

on 3 it would change in the direction at which you apply force but not in the direction of the motion of the object?

 

[PhanthomJay]

The direction of the applied force is given as always perpendicular to the object, so that does not change, but the applied force causes an acceleration in the vertical direction, and the acceleration requires a change in velocity in the vertical direction.

 

[rwisz]

, the direction of the velocity would change if a perpendicular force is applied to an object moving in the x direction. This is because the force would cause the object to change its direction of motion, thus changing the direction of its velocity. The magnitude of the velocity in the x direction may also change, depending on the strength of the applied force and the mass of the object. In general, applying a perpendicular force to an object in motion will result in changes to both the direction and magnitude of its velocity.