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08-10-2017
Physics

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a spherical ball of weight 50 N is to be lifted over the step 5 cm high. the ball has radius 10cm front he flatter side and 20 cm from the round one (since it is a sphere). calculate the minimum force needed to just lift it above the floor

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08-10-2017

1) 30 degree
2)3215 N
4)tension=8.66 N
force by wall=5N

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