A truck moving on a smooth horizontal surface with a uniform speed 'u' is carrying stone-dust. If a mass Δm of the stone-dust `leaks down’ from the truck in the time Δt, the force needed to keep the truck moving at its uniform speed is

A truck moving on a smooth horizontal surface with a uniform speed 'u'

1.	A truck moving on a smooth horizontal surface with a uniform speed 'u' is carrying stone-dust. If a mass Δm of the stone-dust `leaks down’ from the truck in the time Δt, the force needed to keep the truck moving at its uniform speed is
Answer» A truck moving on a smooth horizontal surface with a uniform speed 'u' is carrying stone-dust. If a mass $Δ m$ of the stone-dust `leaks down’ from the truck in the time $Δ t$ , the force needed to keep the truck moving at its uniform speed is

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A truck moving on a smooth horizontal surface with a uniform speed 'u' is carrying stone-dust. If a mass Δm of the stone-dust `leaks down’ from the truck in the time Δt, the force needed to keep the truck moving at its uniform speed is

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