Compare the horizontal displacement of the two balls as they travel to the ground. what do you observe?

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.

What happens in a global convection cell

Crowbar of 5 metre is used to lift an object of 800 metre if the effort arm is 200cm calculate the force applied