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Example 9.4 A force of 5 N gives a massm, an acceleration of 10 m s2 and amass m,, an acceleration of 20 m s2.What acceleration would it give if boththe masses were tied together? |
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Answer» When a force of 5N gives an acceleration of 10ms-² toa bodythen its mass = 5/10 kg = 0.5kgso, m₁ = 0.5kg when a force of 5N gives an acceleration of 20ms⁻²toa bodythen 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 = 6.67ms⁻² |
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