the answer I've got is 1.8substance90 said:So what is the problem with this one? Seems perfectly ok to me.
Doc Al said:You need to find the momentum of the cart before and after the object drops onto it. You have the cart's speed before the collision, so you can find its initial momentum. But what is its speed after the collision?
Hint: What's conserved during any collision?
That happens to be correct, but how did you arrive at this answer?dh743 said:Thanks for your help but i ended up with the correct answer but negative (-1.8). Would this be correct in this situation?
Does the cart speed up or slow down?I would have thought an increase in mass (the object) would mean an increase in momentum.
Momentum is a physical quantity that describes the motion of an object. It is defined as the product of an object's mass and its velocity.
The formula for calculating momentum is p = m * v, where p is momentum, m is mass, and v is velocity.
Momentum is directly proportional to the change in velocity. This means that as the velocity of an object increases, its momentum also increases, and vice versa.
Momentum is important because it is a fundamental concept in physics that helps us understand the behavior of moving objects. It is also conserved in a closed system, meaning that the total momentum before and after a collision remains the same.
The momentum of an object can be affected by its mass and velocity. A heavier object or an object with a higher velocity will have a greater momentum compared to a lighter object or an object with a lower velocity.