Question #25d56

1 Answer
Daniel H.
Feb 15, 2018

F= ma, but we have a few things to calculate first

Explanation:

One thing we don't know is time, but we do know distance and final speed, so #v={\Deltax}/{\Deltat}->\Deltat={\Deltax}/{v}#

Then, #t={7.2m}/{4.8m/s}=1.5s#

Then, we can calculate the acceleration #a={\Deltav}/{\Deltat#

So, #a={4.8 m/s}/{1.5s}->a=3.2m/s^2#

Finally, #F = ma = 63kg*3.2m/s^2=201.6N#

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