The figure below shows a block with a mass of m = 5.30 kg that starts...

 

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The figure below shows a block with a mass of m = 5.30 kg that starts from rest at point A and slides on a track with negligible friction. Point A is at a height of h, 5.70 m. h 3.20 m 2.00 m (a) What is the block's speed at point B (in m/s)? m/s What is the block's speed at point C (in m/s)? m/s (b) What is the net work (in J) done by the gravitational force on the block as it moves from point A to point C? J The figure below shows a block with a mass of m = 5.30 kg that starts from rest at point A and slides on a track with negligible friction. Point A is at a height of h, 5.70 m. h 3.20 m 2.00 m (a) What is the block's speed at point B (in m/s)? m/s What is the block's speed at point C (in m/s)? m/s (b) What is the net work (in J) done by the gravitational force on the block as it moves from point A to point C? J