SaraNextGen Study App [2023-24]
Last Updated On [03-11-2023]

Statement1:

If a sphere of mass  moving with speed  undergoes a perfectly elastic head–on collision with another sphere of heavier mass  at rest  , then direction of velocity of sphere of mass  is reserved due to collision (no external force acts on system of two spheres)

Statement2:

During a collision of spheres of unequal masses, the heavier mass exerts more force on the lighter mass in comparison to the force which lighter mass exerts on the heavier one

a)

Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1

b)

Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1

c)

Statement 1 is True, Statement 2 is False

d)

Statement 1 is False, Statement 2 is True


Question ID - 100935 :-

Statement1:

If a sphere of mass  moving with speed  undergoes a perfectly elastic head–on collision with another sphere of heavier mass  at rest  , then direction of velocity of sphere of mass  is reserved due to collision (no external force acts on system of two spheres)

Statement2:

During a collision of spheres of unequal masses, the heavier mass exerts more force on the lighter mass in comparison to the force which lighter mass exerts on the heavier one

a)

Statement 1 is True, Statement 2 is True; Statement 2 is correct explanation for Statement 1

b)

Statement 1 is True, Statement 2 is True; Statement 2 is not correct explanation for Statement 1

c)

Statement 1 is True, Statement 2 is False

d)

Statement 1 is False, Statement 2 is True

1 Answer
5876 Votes
3537

Answer Key : (c) -

(c)

Statement II contradicts Newton’s third law and hence it is false



Next Question :

Statement 1:

A horizontal force   is applied such that the block remains stationary becausewill produce torque

Statement 2:

The torque produces by friction force is equal and opposite to the torque produced due to normal reaction


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