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NEET UG PHYSICS MCQ: MOTION IN A STRAIGHT LINE

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Analyzing +4 | -1

STATEMENT-1 : For an observer looking out through the window of a fast moving train, the nearby objects appear to move in the opposite direction to the train, while the distant objects appear to be stationary.

STATEMENT-2 : If the observer and the object are moving at velocities

\vec{v}_1

and

\vec{v}_2

respectively with reference to a laboratory frame, the velocity of the object with respect to the observer is

\vec{v}_2-\vec{v}_1

.

View answer and explanation

Correct option: B

Statement 1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1

Statement 1 is True, Statement-2 is True; Statement-2 is NOT a correct explanation for Statement-1. Both statements are correct, but Statement 2 doesn't directly explain the specific observation in Statement 1.

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1 \mathrm{~ms}^{-2}

150 \mathrm{~m}

behind it starts from rest with an acceleration of

2 \mathrm{~ms}^{-2}

. After how much time, the car catches up with the scooter? A motor vehicle travelled the first one third of a distance ‘S ’ at a speed of

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and the last one third at a speed of

{V_3} = 60\,kmph

determine the mean speed of the vehicle over the entire distance ‘S ’