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10 June, 03:53

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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  1. 10 June, 06:07
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    1) 30 degree

    2) 3215 N

    4) tension=8.66 N

    force by wall=5N
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