Calculating Average Force for a Baseball Batting Exercise

In summary, the problem involves a coach hitting pop flies to outfielders and the average force acting on a baseball (mass = 145 g) that stays in contact with the bat for 0.09 s and leaves the bat with a speed of 84 m/s. The formula Fnet=mv/t was used, but the incorrect answer of 135333.3 was obtained due to incorrect units. The mass should be given in kg to obtain the force in Newtons.
  • #1
astru025
163
0
Physics average force need help!

Homework Statement



A coach is hitting pop flies to the outfielders. If the baseball (mass = 145 g) stays in contact with the bat for 0.09 s and leaves the bat with a speed of 84 m/s, what is the average force acting on the ball?

Homework Equations



Fnet=mv/ t

The Attempt at a Solution


Fnet= 145 x 84 / .09
I got 135333.3 and this wa incorrect. I think I am using the wrong equation... Please help!
 
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  • #2
Problem looks like units, assuming you were supposed to give your answer in Newtons. If you want the force in Newtons, you need the mass to be given in kg.
 
  • #3
Thank you very much!
 

1) What is the definition of average force in physics?

In physics, average force is defined as the total force acting on an object over a specific period of time, divided by the duration of that time interval.

2) How is average force calculated in physics?

To calculate average force, you need to divide the change in momentum of an object by the time interval in which the change occurred. This can be represented by the equation F = Δp/Δt, where F is the average force, Δp is the change in momentum, and Δt is the time interval.

3) What is the difference between average force and instantaneous force?

Average force is the total force over a specific period of time, while instantaneous force is the force acting at a specific moment in time. Average force takes into account the change in momentum over a period of time, while instantaneous force only considers the force at a single moment.

4) How does average force affect an object's motion?

According to Newton's second law of motion, the acceleration of an object is directly proportional to the net force acting on it. Therefore, an object will experience a change in motion when there is an average force acting on it over a certain period of time.

5) Can average force be negative in physics?

Yes, average force can be negative in physics. This means that the force is acting in the opposite direction of the object's motion. For example, if an object is moving in the positive direction and experiences a negative average force, it will slow down or change direction.

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