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Grade 11Mechanics

does a single external force acting on a particle necessarily changes its momentum and kinetic energy

Profile image of vihang  agarwal
13 Years agoGrade 11
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3 Answers

Profile image of Mujahid Ahmed
ApprovedApproved Tutor Answer13 Years ago

No, not necessarily.

If only one force is acting and it is perpendicular to the velocity of body, it will not change the velocity and thus, no effect on momentum or K.E.

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Profile image of Himanshu Sharma
13 Years ago

Yes as force = change in momentum per unit time therefore force must change a body''s momentum and hennce kinetic energy.

 

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Profile image of Salim Shamim
13 Years ago

Himanshu Sharma is right, not the first one , so freind you must recheck