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Statement-I : When velocity of a particl...

Statement-I : When velocity of a particle is zero then acceleration of particle is zero.
Statement-II : Acceleration is equal to rate of change of velocity.

A

Statement-I is true, Statement-II is true, Statement-II is correct explanation for Statement-I

B

Statement-I is true, Statement-II is true, Statement-II is NOT a correct explanation for Statement-I

C

Statement-I is true, Statement-II is false

D

Statement-I is false, Statement-II is true.

Text Solution

Verified by Experts

The correct Answer is:
D
Acceleration depends on charge in velocity not on velocity.
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Distance is a scalar quantity. Displacement is a vector quqntity. The magnitude of displacement is always less than or equal to distance. For a moving body displacement can be zero but distance cannot be zero. Same concept is applicable regarding velocity and speed. Acceleration is the rate of change of velocity. If acceleration is constant, then equations of kinematics are applicable for one dimensional motion under the gravity in which air resistance is considered, then the value of acceleration depends on the density of medium. Each motion is measured with respect of frame of reference. Relative velocity may be greater // smaller to the individual velocities. A particle moves from A to B. Then the ratio of distance to displacement is :-

Distance is a scalar quantity. Displacement is a vector quqntity. The magnitude of displacement is always less than or equal to distance. For a moving body displacement can be zero but distance cannot be zero. Same concept is applicable regarding velocity and speed. Acceleration is the rate of change of velocity. If acceleration is constant, then equations of kinematics are applicable for one dimensional motion under the gravity in which air resistance is considered, then the value of acceleration depends on the density of medium. Each motion is measured with respect of frame of reference. Relative velocity may be greater // smaller to the individual velocities. A particle is moving along the path y=4x^(2) . The distance and displacement from x=1 to x=2 is (nearly) :-

Assertion :- A particle has positive acceleration it means that its speed always increases. Reason :- Acceleration is the rate of change of speed with respect to time.

ALLEN -KINEMATICS-Assertion-Reason
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  2. Statement-I : Path of a projectile is a parabola irrespective of its v...

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  3. Statement-I : When velocity of a particle is zero then acceleration of...

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  4. Statement-I : A particle moves in a straight line with constant accele...

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  5. Statement-I : If two particles, moving with constant velocities are to...

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  6. STATEMENT-1: Two balls are dropped one after the other form a tall tow...

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  7. STATEMENT-1: A man can cross river of width d in minimum time t. On in...

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  8. STATEMENT-1: When a body is dropped and another body is thrown horizon...

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  9. STATEMENT-1: The maixmum range along the inclined plane, when thrown d...

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  10. Assertion: Two particles of different mass, projected with same veloci...

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  11. Assertion: The speed of a body can be negative. Reason: If the body ...

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  12. Assertion: A positive acceleration can be associated with a slowing do...

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  13. Assertion: In a free fall, the initially velocity of a boyd may or may...

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  14. Assertion: Graph(s) represent one dimensional motion of a particle. Wh...

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  15. Assertion: When the body is dropped or thrown horizontally form the sa...

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  16. Statement-I : When the direction of motion of a particle moving in a c...

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  17. Statement-I : A cyclist must adopt a zig-zag path while ascending a st...

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  18. Assertion : Mountain roads rarely go straight up the slope. Reason ...

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  19. STATEMENT-1: When a particle is thrown obliquely form the surfcae of t...

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  20. STATEMENT -1 : For an observer looking out through the window of a fa...

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