a car with a mass 2,000 kg travels a distance of 400 m as it moves from one stoplight to the nextat its fastest the car travels at 18 m/s. what is its kinetic energy at this point?

Debbie places two shopping carts in a cart corral she pushes the first cart which then pushes a second cart what force is being exerted

The law of the conservation of momentum says that the total momentum of any closed and isolated system cannot

Consider a double atwood machine constructed as follows: a mass 4m is suspended from a string that passes over a massless pulley on frictionless bearings. the other end of this string supports a second similar pulley, over which passes a second string supporting a mass of 3m at one end and m at the other. using two suitable generalized coordinates, set up the lagrangian and use the lagrange equations to find the acceleration of the mass 4m when the system is released. explain why the top pulley rotates even though it carries equal weights on each side.