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Grade: 11
        does a single external force acting on a particle necessarily changes its momentum and kinetic energy
7 years ago

Answers : (3)

Mujahid Ahmed
42 Points
							

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.

Approve if i helped :)

7 years ago
Himanshu Sharma
31 Points
							

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

 

Please approve.....Smile

7 years ago
Salim Shamim
37 Points
							

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

7 years ago
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