How does car brakes change physical forces related to:

•collision
•velocity during impact
•acceleration/deceleration
• force of impact
•momentum

There are weak or strong attractive forces between atoms of liquids with a high viscosity

What properties of a moving object are used in determining the object's energy of motion

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.