Find the strength of the force used to push the block

Reference no: EM13251313

A 473g wood block is given a quick push across a table. During the push it accelerates at a rate of 0.69m/s2, but after the push it slows to a stop with an acceleration of -0.61m/s2. Assuming the frictional force was the same strength during the push, what was the strength of the force used to push the block to start with?

Reference no: EM13251313

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