A mass of 2.0 kg rests on a frictionless surface. It is attached to a 1.0 kg mass by a light, thin
string which passes over a frictionless pulley. The 1.0 kg mass is released and it accelerates
downwards.What is the speed of the 2.0 kg mass as the 1.0 kg mass hits the floor, having fallen a distance of
0.50 m?

Question

A mass of 2.0 kg rests on a frictionless surface. It is attached to a 1.0 kg mass by a light, thin
string which passes over a frictionless pulley. The 1.0 kg mass is released and it accelerates
downwards.What is the speed of the 2.0 kg mass as the 1.0 kg mass hits the floor, having fallen a distance of
0.50 m?

anonymous · Answer

here is the diagram ...

unklerhaukus · Answer

what are the forces on the 1kg mass

unklerhaukus · Answer

(there are two forces on the 1kg mass)

unklerhaukus · Answer

...?

anonymous · Answer

no forces are given ... the question is correct .

anonymous · Answer

@AllTehMaffs

anonymous · Answer

So what is the force on the hanging mass (the 1 kg mass)?

anonymous · Answer

@Gravityy.boy ?

anonymous · Answer

If you say that there are no forces, then both masses are stationary (since it does not give initial velocities), and the result is trivial.

anonymous · Answer

"The 1.0 kg mass is released and it accelerates downwards."

this implies there is a force present

anonymous · Answer

yes now i understand ;)

unklerhaukus · Answer

gravity and tension