10. A roller weighing I tonne is being dragged along a road. What is the
work done against gravity? Why?
11. Is it possible for an obiect to nossess energy without momentum? Griya
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work done against gravity is zero because there is no displacement is the direction opposite to that of gravitational force .
An object can posses energy without momentum, for example potential energy is stored in stagnant water in a tank at a height. the energy associated to momentum is kinetic energy
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