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In the definition of weight, W = mg, the mass m refers to an inertial mass

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In the definition of weight, W = mg, the mass m refers to an inertial mass.
True or false
For a cart moving along a track with the x-axis parallel to the track, all forces acting on the cart must be along the x-direction.
True or false
If the cart is moving on the positive x axis, the x-component of velocity must be positive.
True or False