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A smooth pulley is used to drag a mass 25.5 kg up a slope. The coefficient of dynamic friction between the mass and the slope is 0.410. A second mass of 20.8 kg is attached to the end of the rope. A person pulls downwards with an additional force of 315 N on a second rope as shown in the diagram. Calculate the acceleration in ms−2 of the 25.5 kg mass. Give your answer with units to an appropriate number of significant figures. Assume the mass of the rope is negligible.

A smooth pulley is used to drag a mass 25.5 kg up a slope. The coefficient of dynamic friction between the mass and the slope is 0.410. A second mass of 20.8 kg is attached to the end of the rope. A person pulls downwards with an additional force of 315 N on a second rope as shown in the diagram. Calculate the acceleration in ms−2 of the 25.5 kg mass. Give your answer with units to an appropriate number of significant figures. Assume the mass of the rope is negligible.

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A smooth pulley is used to drag a mass 25.5 kg up a slope. The coefficient of dynamic friction between the mass and the slope is 0.410 .
A second mass of 20.8 kg is attached to the end of the rope. A person pulls downwards with an additional force of 315 N on a second rope as shown in the diagram.
Calculate the acceleration in m s − 2 of the 25.5 kg mass.
Give your answer with units to an appropriate number of significant figures. Assume the mass of the rope is negligible.

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