What Is the Magnitude of the Impulse Delivered to the Football?

In summary, the magnitude of an impulse is a measure of the strength or intensity of a sudden force acting on an object, calculated by multiplying the force applied by the time duration of the force. It differs from the magnitude of a force in that it takes into account the duration of the force, and it is important in physics for understanding the effects of sudden forces on objects and calculating changes in momentum. The magnitude of an impulse is directly related to the concept of momentum, and can be negative if the direction of the impulse is opposite to the direction of the object's momentum. However, the magnitude of an impulse is always positive.
  • #1
IBdoomed
16
0
A(n) 0.445 kg football is thrown with a speed
of 15.1 m/s. A stationary receiver catches the
ball and brings it to rest in 0.012 s.
What is the magnitude of the impulse de-
livered to the ball?
Answer in units of kg · m/s

f=m*a
Δp=m*Δv


i used f= ma since a= Δv/t
i got F= .445 kg * 1258.3 ms^-2= 559.94
BUT THIS IS WRONG. any help would be nice 0,o
maybe my understanding of an impulse is wrong?
 
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  • #2
You found the force. The question asked for impulse. Use impulse = m*Δv or F*Δt
 

FAQ: What Is the Magnitude of the Impulse Delivered to the Football?

What is the definition of "Magnitude of an Impulse"?

The magnitude of an impulse is a measure of the strength or intensity of a sudden force acting on an object. It is calculated by multiplying the force applied by the time duration of the force.

How is the magnitude of an impulse different from the magnitude of a force?

The magnitude of an impulse is a measure of the strength of a sudden force acting on an object, while the magnitude of a force is a measure of the strength of a continuous force acting on an object. The magnitude of an impulse takes into account the duration of the force, while the magnitude of a force does not.

Why is the magnitude of an impulse important in physics?

The magnitude of an impulse is important in physics because it helps us understand the effects of a sudden force on an object. It is used to calculate changes in an object's momentum and to analyze collisions and other interactions between objects.

How is the magnitude of an impulse related to the concept of momentum?

The magnitude of an impulse is directly proportional to the change in an object's momentum. This means that the larger the magnitude of an impulse, the greater the change in momentum of an object. In fact, the impulse-momentum theorem states that the impulse on an object is equal to the change in its momentum.

Can the magnitude of an impulse ever be negative?

Yes, the magnitude of an impulse can be negative. This occurs when the direction of the impulse is opposite to the direction of the object's momentum. In this case, the impulse will cause a decrease in the object's momentum. However, it is important to note that the magnitude of an impulse is always positive, regardless of the direction of the impulse.

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