The dimension of a room has 5.31m by 7.6m. Find the limits of accuracy for the area of the room

Ameter stick is pivoted at the 0.50-m line. a 3.0-kg object is hung from the 0.15-m line. where should a 5.0-kg object be hung to achieve equilibrium (the meter stick oriented horizontal and motionless)?

Find v(t), given acceleration a(t)=7j and initial velocity v(0)=k

Ain is , is 's of ? 0.62 0.79 1.27 1.50