Question
Download Solution PDFA machine gun fires 60 bullets per minute with a velocity of 700 m/s. If each bullet has a mass of 50 g. the power developed by the gun is:
This question was previously asked in
DSSSB TGT Natural Science Male Subject Concerned -29 Sept 2018 Shift 1
Answer (Detailed Solution Below)
Option 3 : 12250 W
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DSSSB TGT Hindi Female 4th Sep 2021 Shift 2
200 Qs.
200 Marks
120 Mins
Detailed Solution
Download Solution PDFThe correct answer is 12250 W.
Concept:
- Power: Power is the amount of energy transferred or converted per unit time.
- The unit of power is watt or J/s.
- Its dimensional formula is: [M L2 T-3].
Calculation:
Given: v = 700 m/s, m = 50 g = 0.05 kg, n/t = 60 bullets/min ⇒ 1 bullet/s
The power developed by the gun is given by formula -
Power = Work done / time = Energy consumed / time
Power = 12250 watt
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