An object is being weighed on a spring balance moving around a curve of radius 100 m at a speed $7\;{\rm{m}}{{\rm{s}}^{ - 1}}$ The object has a weight of 60 kg-wt. The reading registered on the spring balance would be

NEET UG PHYSICS MCQ: WORK-ENERGY-POWER

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An object is being weighed on a spring balance moving around a curve of radius 100 m at a speed

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

The object has a weight of 60 kg-wt. The reading registered on the spring balance would be

View answer and explanation

Correct option: A

60.075 kg-wt

Option A (60.075 kg-wt) is correct because it accounts for the reduction in apparent weight due to the centripetal acceleration acting upwards.

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{A}

2 {~m}

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

x = \mathrm{m}{\mathrm{s}^{ - 1}}

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

\mathrm{\vec F} = - K\left( {y\hat i + x\hat j} \right)

\mathrm{\vec F}

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