What is the constant force exerted on a ball by a wall during a collision?

In summary, a 5.00 kg ball with a velocity of 6.0 m/s to the left strikes a wall and bounces off with a velocity of 5.0 m/s to the right. The ball is in contact with the wall for 0.30 s. Using the equation f=p/t, the constant force exerted on the ball by the wall is calculated to be 183.3 N to the right. This is determined by finding the change in momentum, which is equal to the net force on an object according to Newton's 2nd law.
  • #1
mortho
100
0

Homework Statement


A 5.00 kg ball strikes a wall with a velocity of 6.0 m/s to the left. The ball bounces off with a velocity of 5.0 m/s to the right. If the ball is in contact with the wall for 0.30 s, what is the constant force exerted on the ball by the wall?



Homework Equations



f=p/t

The Attempt at a Solution



Ok so i found p which i did mv or (5)(11) then plugged it to p/t and did 55/0.30 and got 183.3 N to the right...is that correct?

Thanks!
 
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  • #2
Initial momentum is 5*-6=-30 kgms^-1

Final momentum is 5*+5=+25kgms^-1

what is the change in momentum? how does Newton's 2nd law apply?
 
  • #3
oh...so 5 **Net force on an object is equal to its rate change of momentum.
 
  • #4
but that's such a small number is that possible??
 
  • #5
mortho said:
Net force on an object is equal to its rate change of momentum.
YesThe change in momentum=Final-Initial=25-(-30)=55kgms^-1

and by Newton's 2nd law:F=55/0.3

so you are correct.
 

Related to What is the constant force exerted on a ball by a wall during a collision?

1. What is a constant force of ball?

A constant force of ball is the force that is continuously applied to a ball in the same direction and with the same magnitude. It does not change over time and is responsible for the ball's motion or acceleration.

2. How is the constant force of ball calculated?

The constant force of ball is calculated by multiplying the mass of the ball by its acceleration. This is known as Newton's Second Law of Motion, which states that force equals mass times acceleration (F=ma).

3. What factors affect the constant force of ball?

The constant force of ball can be affected by several factors such as the mass of the ball, the acceleration of the ball, and the direction of the force. Other factors like air resistance and friction can also play a role in determining the constant force of ball.

4. How does the constant force of ball impact the ball's motion?

The constant force of ball is responsible for the ball's motion or acceleration. If the force is applied in the same direction as the ball's initial velocity, the ball will speed up. If the force is applied in the opposite direction, the ball will slow down. If there is no force acting on the ball, it will continue to move at a constant speed.

5. Can the constant force of ball be changed?

Yes, the constant force of ball can be changed by adjusting the magnitude or direction of the force. It can also be changed by altering the mass or acceleration of the ball. However, if all factors remain constant, the force will remain constant as well.

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