Mathematics · Variable Mass Systems
A variable-mass body with an initial mass of 15 kg is moving with an initial velocity of 15 m/s. After some time, the velocity increases to 20 m/s. What will be the new mass if the body is moving in the absence of any external force?
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 17.5 kg
- 210 kg
- 312.5 kg
- 411.25 kg✓
Correct answer
11.25 kg
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