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

2399 Views

See similar Physics A Level tutors

Related Physics A Level answers

All answers ▸

Why does light change direction when it hits a surface with a different refractive index?


Why does an α particle cause more ionisation than a β particle if they have the same kinetic energy?


Newton's Law of Gravitation states: F=GMm/r^2, where G is the gravitational constant (6.67×10−11m^3kg^−1s^−2). Kepler's Third Law, states t^2=kR^3. The mass of the sun is 1.99x10^30kg. Find the value of k and its units


In terms of particles, explain how resistance arises in metal conductors and why does this resistance increases with temperature.


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