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A 2.0 kg block of iron slides along a floor, decreasing its speed from 4.0 m/s to 1.0 m/s. a) How much work does the frictional resistance of the floor do on the block? b) If the reduction in velocity occurred over a distance of 10 m, what was the force o...

please help with cart thing A 45 kg cart is pushed up a ramp a length of 5.8 m from rest, attaining a speed of 2.6 m/s at the top of the ramp, which is 1.7 m high. The coefficient of friction between the cart and the ramp is 0.13. a) Determine the work do...

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