A rifle of 20 kg mass can fire 4 bullets per second. The mass of each bullet is $35 \times 10^{- 3} k g$ and its final velocity is $400 m s^{- 1}$ . Then what force must be applied on the rifle so that it does not move backwards while firing the bullets

80N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

28N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

112N

No worries! We‘ve got your back. Try BYJU‘S free classes today!

56N

Right on! Give the BNAT exam to get a 100% scholarship for BYJUS courses

Open in App

Solution

The correct option is D 56N
Momentum transferred to rifle by $4$ bullet $m_{1}$ .
So, the force applied on the rifle
i.e. $35 \times 10^{- 3} \times 400 \times 4 = 56 N$

Suggest Corrections

Similar questions

10

4

20

300 m s^{- 1}

300 m s^{- 1}

From rifle of mass 4kg bullet of mass 50g is fired with an initial velocity of 35m per second.calculate the initial recoil velocity of the rifle.

20 k g m / s

1000 m / s

4

k g

50

g

35

m s^{- 1}

Join BYJU'S Learning Program