A person holding a rifle (mass of person and rifle together is 100 kg) stands on a smooth surface and fires 10 shots horizontally, in 5 s. Each bullet has a mass of 10 g with a muzzle velocity of 800 ms-1. The final velocity acquired by the person and the average force exerted on the person are

see full answer

Take the SCORE scholarship exam from home and compete for scholarships worth ₹1 crore!*

An Intiative by Sri Chaitanya

-0.08 ms-1,16 N

-0.8 ms-1,8 N

-1.6 ms-1,16 N

-1.6 ms-1,8 N

answer is A.

(Unlock A.I Detailed Solution for FREE)

Ready to Test Your Skills?

Check your Performance Today with our Free Mock Test used by Toppers!

Take Free Test

Detailed Solution

0=nmu + (M-nm)v ⇒0=10×101000×800 + (100-10×101000)v ⇒v=-8099.9=-0.8 m/s Average force exerted = 10×0.01×8005=16N

Watch 3-min video & get full concept clarity