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If force is acting on a moving body perpendicular to the direction of motion, then what will be its effect on the speed and direction of the body?

Physicist

speed is constant and direction change coninusly

Their is no effect on the direction of the body as the force acting perpendicularly but it definitely reduces the speed of the moving body or it will stop the moving body if the force is too much higher.

Tutor

perpendicular force acting on an object will only change the direction of its velocity, not its magnitude since there is no force in the direction of its velocity.

Excellence Award Winner

Speed remains constant ,but direction will change,ex:uniform circular motion ,if a body moving in circular motion the only force acting is towards centre(cetripetal force),at any instant the force is perpendicular to velocity ,there only direction will change not speed ,speed remains constant

Tutor

As force is perpendicular to the direction of motion, magnitude of velocity remains constant, that is there is no change in speed

Mentor/ Tutor

The magnitude of velocity shall decrease and direction shall be same till it comes to rest, afterwards it shall move in direction of force with acceleration due to the applied force.

Mentor/ Tutor

It cannot change the speed(in earlier )direction though, Net speed and direction of the motion shall change with the change in time.

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