dlilpyro said:Yes so is this the right way to set up the equation for the second part:
(50)(v)=(.001)(150)
v=-.003 m/s - v is negative because moving backwards
I'm not sure if 50 kg is the right mass though. I took it as the girl and the gun becoming one system so their masses are added.
dlilpyro said:I'm not sure what the additional term is because we didn't have time to get the equation during class today. But if the initial velocity is zero how can you solve for v final on the left side?
Momentum is a measure of an object's motion, and it is equal to the product of its mass and velocity. It is a vector quantity, meaning it has both magnitude and direction.
Momentum (p) is calculated by multiplying an object's mass (m) by its velocity (v), using the formula p = m * v.
Impulse is the change in an object's momentum over a period of time. It is equal to the force applied to an object multiplied by the time it is applied for, represented by the formula J = F * Δt.
Impulse and momentum are closely related. In fact, impulse is defined as the change in momentum, or the product of force and time. This means that the greater the impulse on an object, the greater its change in momentum will be.
Momentum and impulse are important concepts in physics and have many real-world applications. They are used in sports, such as calculating the force needed to kick a soccer ball into the goal, and in car safety, as cars are designed with crumple zones to increase the time of impact and reduce the impulse on passengers during a collision.