Apendulum has 366 j of potential energy at the highest point of its swing. how much kinetic energy will it have at the bottom of its swing?

A1000-kg car is moving at 30 m/s around a horizontal unbanked curve whose diameter is 0.20 km. what is the magnitude of the friction force required to keep the car from sliding?

Determine the moment of the force f about an axis extending between a and c. express the result as a cartesian vector. a is at the origin, c is at (4,3,0) and f = (4i + 12j -3k) lb coming out of b (4,3,-2).

Which of the following forces require physical contact? tension air resistance friction magnetic force applied force