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24115
Dec 8, 2009, 03:03 PM
what is the velocity of a block after 10 seconds if force applied=15 newtons, force of friction= 5 newtons and mass= 12 kilograms?

InfoJunkie4Life
Dec 8, 2009, 03:45 PM
a = F/m : Acceleration equals force divided by mass.

v = at : Velocity equals acceleration times time.

Force is measured in newtons, time in seconds, mass in kilograms.

If you have an object that is accelerating and there is friction, the friction acts like negative acceleration. For every 15 newtons you have 5 newtons pushing backwards against it. Thus you have a total acceleration of 10 newtons.


Any more questions, just post back.