SATHEE: Laws Of Motion Question 245

Laws Of Motion Question 245

Question: A machine gun fires a bullet of mass 40 g with a velocity $1200 m s^{- 1} .$ The man holding it can exert a maximum force of 144 N on the gun. How many bullets can he fire per second at the most[AIEEE 2004]

Options:

A) One

B) Four

C) Two

D) Three

Show Answer

Answer:

Correct Answer: D

Solution:

u = velocity of bullet $\frac{d m}{d t} =$

Mass fired per second by the gun $\frac{d m}{d t}$ = Mass of bullet (mB) × Bullets fired per sec (N)

Maximum force that man can exert $F = u (\frac{d m}{d t})$

$∴$ $F = u \times m_{B} \times N$

therefore $N = \frac{F}{m_{B} \times u} = \frac{144}{40 \times 10^{- 3} \times 1200} = 3$

पिछला

अगला

Laws Of Motion Question 245

Question: A machine gun fires a bullet of mass 40 g with a velocity $1200 m s^{- 1} .$ The man holding it can exert a maximum force of 144 N on the gun. How many bullets can he fire per second at the most[AIEEE 2004]

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Laws Of Motion Question 245

Question: A machine gun fires a bullet of mass 40 g with a velocity 1200ms−1. The man holding it can exert a maximum force of 144 N on the gun. How many bullets can he fire per second at the most[AIEEE 2004]

Options:

Answer:

Solution:

इंजीनियरिंग की तैयारी

चिकित्सा तैयारी

एनसीईआरटी पुस्तकें और समाधान

महत्वपूर्ण संसाधन

अन्य संसाधन

पाठ्यक्रम

परीक्षा मंच

नमूना मॉक टेस्ट

सदस्यता

एनसीईआरटी व्यायाम वीडियो समाधान

Menu

Question: A machine gun fires a bullet of mass 40 g with a velocity $1200 m s^{- 1} .$ The man holding it can exert a maximum force of 144 N on the gun. How many bullets can he fire per second at the most[AIEEE 2004]