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**1. A 50.0 sprinter, starting from rest, runs 56.0 in 9.40 at constant acceleration**

What is the magnitude of the horizontal force acting on the sprinter?

What is the sprinter's power output at 1.10 , 3.70 , and 5.20 ?

What is the magnitude of the horizontal force acting on the sprinter?

What is the sprinter's power output at 1.10 , 3.70 , and 5.20 ?

**2. Homework Equations**

I would imagine f=ma and possibly some kinematics for part a, and then P= work/t

I would imagine f=ma and possibly some kinematics for part a, and then P= work/t

**3. The Attempt at a Solution :**

I cant find the force which seems to be the hardest part

I cant find the force which seems to be the hardest part