NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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Analyzing +4 | -1

Assertion(A): A spring of force constant

k

is cut into two pieces having lengths in the ratio

1: 2

. The force constant of series combination of the two parts is

3 k / 2

.

Reason(R): The spring connected in series are represented by

k=k_1+k_2

View answer and explanation

Correct option: D

Both Assertion and Reason are incorrect.

Option C (Velocity) is correct because both bodies experience the same acceleration due to gravity, and since they are dropped from the same height, they will have the same velocity at any given point.

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2\mathrm{\;m}{\mathrm{s}^{ - 1}}

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