[Einstein Uae]

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 ^^