Force given mass and acceleration problem

AI Thread Summary
To solve the problem of the force experienced by a passenger in a Ferrari accelerating from 0 to 100 km/hr in 4.80 seconds, the correct approach involves calculating acceleration using the formula a = v/t. The initial calculation mistakenly used km/hr instead of converting to m/s, leading to an incorrect force value. The proper conversion shows that the acceleration is approximately 5.56 m/s². Using the correct acceleration, the force can be accurately calculated as F = ma, resulting in a force of about 378.88 N. Proper unit conversion is crucial for accurate physics calculations.
tworley1977
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Homework Statement


Here is the problems exactly as written in the homework:

A Ferrari accelerates from 0 to 100km/hr in 4.80 secs. What force (in Newtons) does a passenger with a mass of 68kg experience during the acceleration?


Homework Equations


a = v/t
F=ma


The Attempt at a Solution


Ok...seems pretty straightforward, but the answer I come up with comes back as wrong. Can anyone point out my error?

a=100/4.8=20.83km/hr

F=68*20.8 = 1416.4kg*km/hr = 1416.4N
 
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Nevermind. I see what I over looked. Forgot to convert km/hr to m/s.
 
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