السؤال الثاني :
a) The forces are gravity Fg (downward) and tension T (upward), and the object is moving
the force balance on the 2kg mass
m*a = T - mg
you will get an equation of terms of T and a
do the same but now for the 6Kg mass
now u r going to have to equations in terms of T & a
so substract them to eliminate T and find a =??
part b ) Substitute the value of the acceleration you found in part a into the equations you got above to find T= ??
part c ) speed = acceleration * time
it is easy now ^^