A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle, the motion of the particles takes place in a plane. It follows that

its kinetic energy is constant

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its acceleration is constant

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its velocity is constant

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it moves in a straight line

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Solution

The correct option is A its kinetic energy is constant
Work done by such force is always zero since force is acting in a direction perpendicular to velocity
therefore from work energy theorem $= Δ K = 0$
K remains constant

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A particle is acted upon by a force of constant magnitude which is always perpendicular to the velocity of the particle, the motion of the particles takes place in a plane. It follows that

The correct option is A its kinetic energy is constantWork done by such force is always zero since force is acting in a direction perpendicular to velocitytherefore from work energy theorem=ΔK=0K remains constant

The correct option is A its kinetic energy is constant
Work done by such force is always zero since force is acting in a direction perpendicular to velocity
therefore from work energy theorem $= Δ K = 0$
K remains constant