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Standard XII

Physics

Intro to Torque

A spring is a...

Question

A spring is attached to a 2kg object with a spring constant of 1 N/m. The spring applies a force $F_{1}$ when compressed by a distance of 1m and the a force $F_{2}$ when stretched by a distance 1m. What is the magnitude of $F_{2} - F_{1}$ ?

0 N

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1 N

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2 N

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4 N

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Solution

The correct option is C 2 N
Force applied by spring is restoring in nature.
Hence, $F_{1}$ and $F_{2}$ are opposite in sign.
$F_{1} = 1 \times 1 = 1 N$
$F_{2} = - 1 \times 1 = - 1 N$
$| F_{2} - F_{1} | = 2 N$

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A spring is attached to a 2kg object with a spring constant of 1 N/m. The spring applies a force F1 when compressed by a distance of 1m and the a force F2 when stretched by a distance 1m. What is the magnitude of F2−F1?

The correct option is C 2 NForce applied by spring is restoring in nature. Hence, F1 and F2 are opposite in sign.F1=1×1=1NF2=−1×1=−1N|F2−F1|=2N

A spring is attached to a 2kg object with a spring constant of 1 N/m. The spring applies a force $F_{1}$ when compressed by a distance of 1m and the a force $F_{2}$ when stretched by a distance 1m. What is the magnitude of $F_{2} - F_{1}$ ?

The correct option is C 2 N
Force applied by spring is restoring in nature.
Hence, $F_{1}$ and $F_{2}$ are opposite in sign.
$F_{1} = 1 \times 1 = 1 N$
$F_{2} = - 1 \times 1 = - 1 N$
$| F_{2} - F_{1} | = 2 N$