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The block of mass M is falling downward at speed { v }_{ 1 } when it is a distance h from the sandy surface. Determine the average impulsive force acting on the block by the sand if the motion of the block is stopped in time Δt once the block strikes the sand. Neglect the distance the block dents into the sand and assume the block does not rebound. Neglect the weight of the block during the impact with the sand.Given: M = 5 kg , { v }_{ 1 } = 2 m/s , h = 8 m , Δt = 0.9 s , g = { 9.81 m/s }^{ 2 }

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