• creative_wind
In summary, the conversation discusses a physics homework problem involving a basketball bounce pass and the impulse delivered to the ball by the floor. The student provides their attempts at solving the problem and asks for help. The concept of impulse and its relation to force and momentum is also mentioned.
creative_wind
Hello,
I am (obviously) new to the forum. I am in an introductory-level physics course in university and although I had taken a year of physics in high school, these easy intro questions on my homework keep snagging me. This is online homework and I get 5 attempts at the correct solutions. This is what I have:

## Homework Statement

To make a bounce pass, a player throws a 0.60 kg basketball toward the floor. The ball hits the floor with a speed of 6.5 m/s at an angle of 64° from the vertical. If the ball rebounds with the same speed and angle, what was the impulse delivered to it by the floor?

## Homework Equations

I=Favg(T2-T1)=P=m*v

Where P=momentum

## The Attempt at a Solution

I=m*v
m=0.6kg
v=6.5*cos(64)=2.85m/s
I=0.6kg*2.85m/s=1.71kg*m/s <--this was wrong

I=m*v
m=0.6*cos(64)=0.26kg
v=6.5*cos(64)=2.85m/s
I=0.26kg*2.85m/s=0.74kg*m/s <--this was wrong

I figured the velocity had to be in the y-component since it is vertically upward from the floor. I'm really not sure though...

Thanks :)

this should help ya:

Impulse is the integral of force over time, it is measured in Newton-seconds. For instance a force of one Newton applied over one second will change the momentum, a force of two Newton's applied over half of a second will have a similar effect.

For rigid body collisions we take this to its limit and apply an infinite force over an infinitesimally small time. This impulse is equal to the change in momentum of the colliding objects. Because we are talking about forces here, Newton's third law applies, and the impulse on the colliding objects will be equal and opposite.

impulse = m(vf- vi)

Hello,

I would like to offer some guidance on how to approach this problem. Firstly, it is important to understand the concept of impulse in physics. Impulse is defined as the change in momentum of an object over a period of time. It is calculated by multiplying the average force acting on an object by the time it is applied. In this case, we can use the equation I = Favg * Δt.

Now, let's look at the given information. We know that the basketball has a mass of 0.60 kg and a velocity of 6.5 m/s at an angle of 64° from the vertical. We also know that after hitting the floor, it rebounds with the same speed and angle. This means that the change in momentum (Δp) of the basketball is equal to its initial momentum (p) since it ends up with the same speed and direction. Therefore, we can use the equation Δp = p = m * v.

To calculate the impulse, we need to find the average force (Favg) and the time (Δt). We can find the average force by using the equation Favg = Δp/Δt. Since the change in momentum is equal to the initial momentum, we can rewrite this equation as Favg = p/Δt. Now, we need to find the time it takes for the basketball to hit the floor and rebound. This can be calculated by dividing the total distance traveled by the average speed, which is given by v * cos(64°). This gives us Δt = 2h/(v * cos(64°)) where h is the height at which the basketball is thrown.

Now, we can plug these values into the equation for impulse and calculate the answer. I would suggest reviewing the concept of impulse and understanding the equations before attempting the problem again. Remember to pay attention to the units and use the correct formula. I hope this helps!

## 1. What is "Impulse basketball homework Question"?

"Impulse basketball homework Question" is a scientific experiment or research question that involves studying the effects of impulse on basketball movements and performance. It is a common topic in sports science and biomechanics.

## 2. How is impulse related to basketball?

Impulse is a concept in physics that describes the change in momentum of an object. In basketball, impulse is an important factor in the movement and performance of players, as it affects their speed, acceleration, and force. Understanding impulse can help improve techniques and prevent injuries in basketball players.

## 3. What methods are used to study "Impulse basketball homework Question"?

Various methods can be used to study "Impulse basketball homework Question", including motion analysis, force plate measurements, and mathematical modeling. These methods allow scientists to measure and analyze the forces and impulses involved in basketball movements and performance.

## 4. What are the potential benefits of studying "Impulse basketball homework Question"?

Studying "Impulse basketball homework Question" can provide valuable insights into the biomechanics of basketball movements and help improve training techniques and prevent injuries in players. It can also contribute to the overall understanding of human movement and performance in sports.

## 5. Are there any real-life applications of "Impulse basketball homework Question"?

Yes, the findings from studying "Impulse basketball homework Question" can be applied in real-life situations such as training athletes, designing equipment, and developing injury prevention strategies. This research can also be beneficial in other sports that involve quick and explosive movements, such as soccer, football, and tennis.

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