Shown in the figure is a system of three particles of mass $$1$$ kg, $$2$$ kg and $$4$$ kg connected by two springs. The acceleration of A, B and C at any instant are $$1$$ $$ms-2$$, $$2$$ $$ms-2$$ and $$1/2$$ $$ms-2$$ respectively directed as shown in the figure external force acting on the system is:

Question

Infinity Learn · Accepted Answer

The acceleration of centre of mass of the $$systemacm=m1a$$→$$1+m2a$$→$$2+m3a$$→$$3m1+m2+m3$$⇒ The net force acting on the system       $$=m1a$$→$$1+m2a$$→$$2+m3a$$→$$3$$⇒ Fnet $$=m1a1+m2a2$$−$$m3a3$$                  $$=(1)(1)+(2)(2)$$−$$12(4)$$ $$N=3$$ N

Shown in the figure is a system of three particles of mass 1 kg, 2 kg and 4 kg connected by two springs. The acceleration of A, B and C at any instant are 1 ms^-2, 2 ms^-2 and 1/2 ms^-2 respectively directed as shown in the figure external force acting on the system is:

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Shown in the figure is a system of three particles of mass 1 kg, 2 kg and 4 kg connected by two springs. The acceleration of A, B and C at any instant are 1 ms-2, 2 ms-2 and 1/2 ms-2 respectively directed as shown in the figure external force acting on the system is:

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Shown in the figure is a system of three particles of mass 1 kg, 2 kg and 4 kg connected by two springs. The acceleration of A, B and C at any instant are 1 ms^-2, 2 ms^-2 and 1/2 ms^-2 respectively directed as shown in the figure external force acting on the system is: