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A 3.5 kg block moving along the x axis is acted upon by a single horizontal...

A 3.5 kg block moving along the x axis is acted upon by a single horizontal force that varies with the block’s position according to the equation Fx = ax^2 + b , where a = 7 N/m^2 , and b = −3.3 N. At 1.4 m, the block is moving to the right with a speed of 4.6 m/s. Determine the speed of the block at 2.3 m. Answer in units of m/s

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Answer #1

Given: m = 3.5kg F = 7x² -3.3 Here x = 1.4m and v= 4.6 m/s x = 2.3m According to work-energy theorem: AKE= Workdone 2.3 1[=Y

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