Calculating Force: Homework Solving

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To solve the race car problem, the acceleration can be calculated using the formula a = (final velocity - initial velocity) / time, leading to a net force using F = ma. For the baseball, the acceleration is found to be -6200 m/s², and the force acting on it can be determined by applying F = ma, considering the mass of the baseball. The direction of the force is opposite to the baseball's initial motion. The force acting on the player can be calculated similarly, taking into account the player's mass and the acceleration experienced during the catch. Detailed calculations are necessary to identify any errors in the initial attempts.
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Homework Statement


a) A race car has a mass of 718 kg. It starts from rest and travels 44.0 m in 3.0 s. The car is uniformly accelerated during the entire time. What net force is exerted on it?

b) As a baseball is being caught, its speed goes from 31.0 m/s to 0.0 m/s in about 0.0050 s.
(First I found out that the baseball's acceleration was -6200).
What are the magnitude and direction of the force acting on it?
What are the magnitude and direction of the force acting on the player who caught it


Homework Equations


a = change in velocity / change in time
F=ma
a = net force / mass



The Attempt at a Solution


a) i used the constant acceleration formula to find "a", then plugged it into the net force formula. my answer was wrong.

b) i have absolutely no idea what force is 'acting' on it, or how to approach the solution to the next two requirements. i simply am not a physics person. any or all help dearly appreciated. thank you
 
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