Question

A force of F newton gives a mass m1 kg and acceleration of a1 ms^-2 and a mass m2 kg am acceleration of a2 ms^-2. The acceleration produced by same force when both the masses are tied together is

Answer 1

when a force of 5N gives an acceleration of 10ms-² to a body 
then its mass = 5/10 kg = 0.5kg
so, m₁ = 0.5kg

when a force of 5N gives an acceleration of 20ms⁻² to a body 
then its mass = 5/20 kg = 0.25kg
so, m₂ =  0.25kg
when the two bodies r tied total mass of the system bcomes = 0.75kg
so acceleration of the system will b = force/mass = 5/0.75 = 6.67 ms⁻²


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