Question

A force of 5n gives a mass m , an acceleration of 10m/ sec2 &on mass m2 an acceleration of 20m/secs what acceleration would it give if both the masses where tied together

Answer 1

when a force of 5N gives an acceleration of 10ms-² to a body then its mass = 5/10 kg = 0.5kgso, m₁ = 0.5kg
when a force of 5N gives an acceleration of 20ms⁻² to a body then its mass = 5/20 kg = 0.25kgso, m₂ =  0.25kgwhen the two bodies r tied total mass of the system bcomes = 0.75kgso acceleration of the system will b = force/mass = 5/0.75 = 6.67 ms⁻²