G A log of length 12 m mass 85 kg is placed horizontally on two supports. One support is 1.8 m from the left end of the log and the other is 3.8 m from the right end. Find the forces F1 and F2 exerted on the log by the supports. (hint: Choose left support as pivot point)

What is the length x of the side of the triangle below? (hint: use the cosine function)

Apulley system is used to lift a 2,000 newton engine up a distance of 3 meters. the operator must apply a force of 250 newtons to the chain of the pulley system to lift the motor. to lift the engine 3 meters, the operator must pull a total of 30 meters of chain through the pulley system. what is the value of di?

One object has a mass of 1 kg and another object has a mass of 3 kg. if the speeds are the same, which of the following is true about their kinetic energy?