Practice – Kent_science_yr6_forces_and_motion
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You need to lift a heavy rock using a long plank and a brick as a pivot. (variant 7)
Select the ONE best answer from the options panel.
Remove the pivot and only use your hands.
Hold the rope at both ends and push down only.
Place the pivot far from the rock and push very near the rock.
Place the brick close to the rock so the long end of the plank is where you push.
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