20 - 3 = m a
17 = 6 a
a = 17 / 6
So what is the question? This seems to be the day for half worded questions.
What was its initial speed? How long to accelerate to whatever speed? Distance during acceleration?
A box of 6kg is pulled to the right on horizontal surface by force of 20 N. The box experience a constant friction force of 3N during it's motion
3 answers
Calculate normal force.
The normal force on the ground is m g = 6 * 9.81 Newtons