Easy Science Class 9 Level 5

When can work be zero?

कार्य का मान zero कब हो सकता है?

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Correct Answer

A. force लगने पर displacement zero हो / When force acts but displacement is zero

Explanation

Step 1: Identify the concept: this is condition for work. Step 2: Work needs both force and displacement so if displacement is zero work is zero. Step 3: Remember no displacement means no work.

Step 1: concept पहचानें: यह work condition है। Step 2: Work के लिए force और displacement दोनों जरूरी हैं इसलिए displacement zero होने पर work zero होगा। Step 3: No displacement means no work याद रखें।

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