2) A 2kg mass in free space (no gravity) is seen moving with a constant acceleration of 4m/s^2 in the +j direction because of four forces, three of which are known and shown. Find the unknown force F_4 in unit vector notation
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2) A 2kg mass in free space (no gravity) is seen moving with a constant acceleration of 4m/s^2 in the +j direction because of four forces, three of which are known and shown. Find the unknown force F_4 in unit vector notation.
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