Question

Two blocks A and B of masses m and 2m respectively are held at rest such that the spring i in natural length.What is the acceleration of both the blocks just after the release

Answer 1

total mass acting on second block ( weigh 2m) = 2m- m
= m

accleretaion = force/mass
gravity due to earth =10

force = m×10
ma =10m
a=10

total mass on first block (weigh m ) :-
m-2m
= -m
therefore acceleration = -× 10
= -10