6. Velocity is a ____________. a) vector b) value c) arrow d) none of these
2 answers:
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For Newton's second law, the force F applied to the object of mass m will cause an acceleration a of the body:
So, the acceleration is
The object undergoes through this acceleration for 10 seconds, t=10 s. Since it is an accelerated motion, we can find its final velocity after 10 seconds:
where
is the initial velocity of the object, which is zero since it starts from rest.
Finally we can calculate the final kinetic energy of the object, which is given by
So, the acceleration is
The object undergoes through this acceleration for 10 seconds, t=10 s. Since it is an accelerated motion, we can find its final velocity after 10 seconds:
where
Finally we can calculate the final kinetic energy of the object, which is given by