Better Students Ask More Questions.
A machine gun fires n bullets per second and the mass of each bullet is m. If v is the...
1 Answer | add yours
First we have to determine the units of Force.
Force = mass * acceleration
Force = Newton = (kg-m)/(s^2)
Mass of each bullet = m
The number of bullets fired per seconds = n
The velocity of each bullet = v
We can say that the force applied on the vehicle can be expressed as = mnv
We can see that the units of force fits with the expression mnv. The answer is therefore letter B. mnv
Posted by jerichorayel on May 5, 2013 at 9:40 AM (Answer #1)
Join to answer this question
Join a community of thousands of dedicated teachers and students.