same tractor pulls a trolley of mass m2 with a force f producing – Discussion Forum

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Kriti

Asked: September 17, 2026In: Class 9 Science

A tractor pulls a harrow (a ploughing tool) of mass m1 with a net force F resulting in an acceleration of a1. The same tractor pulls a trolley of mass m2 with a force F producing an acceleration of a2. If the tractor now pulls the trolley with the harrow placed on it (with the same force F), then obtain an expression for the resulting acceleration in terms of a1 and a2. Ignore friction.

Mass m1 is F divided by a1 and mass m2 is F divided by a2. The combined acceleration is F divided by the total mass, which simplifies algebraically to a1 a2 divided by the sum of a1 and a2.