What is the kinetic energy of a 36N toy car which is moving at 5 m/s?

Two particles of masses m and 2m are placed on a smooth horizontal table. a string, which joins these two masses, hangs over the edge supporting a pulley, which suspends a particle of mass 3m.the pulley has negligible mass. the two parts of the string on the table are parallel and perpendicular to the edge of the table. the hanging parts of the string are vertical. find the acceleration of the particle of mass 3m.

Which branches of natural science include the study of an organism that lived 10 million years ago

Which two particles are found in the center of an atom