How Is Average Net Force Calculated on a Mercedes?

AI Thread Summary
To calculate the average net force applied to a 2000 kg Mercedes accelerated from 10 m/s to 30 m/s in 4.75 seconds, first determine the acceleration using the formula (Vf - Vi) / t, which results in 4.21 m/s². The net force can then be calculated using Newton's second law, F = m * a, yielding a force of 8420 N. The discussion highlights the importance of understanding the relationship between mass, acceleration, and net force in physics. Clarification on the formula F_net = ma is provided to assist those confused about the calculations. This example illustrates the practical application of these concepts in real-world scenarios.
JMurph
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Your 2000 kg Mercedes is accelerated from 10 m/s to 30 m/s in 4.75s. What is the average net force that you have applied to the car in that time interval?Givens are:
mass= 2000 kg
time= 4.75s
acceleration=(Vf-Vi)/t= (30m/s-10m/s)/4.75s= 4.21m/s2
F=m*a= 2000kg*4.21m/s2= 8420 N

Unidentified:
FNet=?I'm completely stumped. Help is greatly appreciated!
 
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It's F_net =ma. F_net =??
 

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