A projectile of mass m is projected at angle ' ' with the horizontal with an initial velocity from point ' O '. (Neglect air resistance) Column IColumn II(i) K.E. of particle[A] Increases(ii) Angular momentumabout 'O'[B] Decreases(iii) Torque of mg aboutO[C] First increases thenDecreases(iv) Radius of curvatureof trajectory ofparticle[D] First decreases thenincreases

A projectile of mass m is projected at angle ' ' with the …

Physics Motion in a Plane Mix MCQ (Single Correct)

A projectile of mass m is projected at angle ' ' with the horizontal with an initial velocity from point ' O '. (Neglect air resistance)

Column I	Column II
(i) K.E. of particle	[A] Increases
(ii) Angular momentum about 'O'	[B] Decreases
(iii) Torque of mg about O	[C] First increases then Decreases
(iv) Radius of curvature of trajectory of particle	[D] First decreases then increases

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The correct answer is:

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Ans.

(i) [D]

(ii) [A]

(iii) [A]

(iv) [D]

Sol.
decrease from point of projection to highest point and then increases.

X: horizontal distance travelled by projectile.

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