A gun of mass 10kg fires a bullet of mass 240g at a speed of 300ms-1. What is the speed of the gun's recoil?

First, convert the mass of the bullet into SI units -> 240g=0.24kg

The law of the conservation of momentum states that m1v1=m2v2. To find the speed of the gun, rearrange for v1 to give v1=m2v2/m1 and substitute in the given values; m2=0.24kg, v2=300ms-1, and m1=10kg. This gives v1=0.24x300/10=7.2ms-1

JF
Answered by Jonny F. Physics tutor

2458 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Explain the gaps within an absorption spectrum and where this may commonly occur in the universe


A circuit with a voltage source of 18V, has 3 resistors all connected on parallel, values at 2ohms, 6ohms and 7.5ohms. Find the total circuit resistance, and then subsequently, the total current supplied and power dissipated in the curcuit.


Two forces of 4N and 10N act on a body. Which of the following could not be the resultant magnitude? (14N, 7N, 6N, 3N)


An electron and a proton are in any electric field E=5x10^2 V/m. What is their speed 1.0 cm after being released?


We're here to help

contact us iconContact ustelephone icon+44 (0) 203 773 6020
Facebook logoInstagram logoLinkedIn logo

MyTutor is part of the IXL family of brands:

© 2025 by IXL Learning