Question

Two particles each of mass m are fixed together by a massless spring. A force f acts on mass



b. At the instant shown a mass a has accelaration a

Answer 1

Given : 

Acceleration of 10kg mass =12m/s²

Force=ma

F=10x12=120N will act .

Net force on 20kg mass will be :

200N-120 N=80N

a=F/m

=80/20

=4m/s²

∴ The acceleration of 20kg mass is 4m/s²

p