What are the TWO conditions for a system to be in mechanical equilibrium?

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

Calculate the first and second velocities of the car with four washers attached to the pulley, using the formulas v1 = 0.25 m / t1 , and v2 = 0.25 m / (t2 – t1) where t1 and t2 are the average times the car took to reach the 0.25 and the 0.50 meter marks. record these velocities, to two decimal places, in table e.

Which word expression describes how much to calculate pressure