Asked by Malon

[7/20, 10:59 PM] Shanice: A crow bar 1,5 m long is used to lift a 100kgs of rock out of a hole 25cm deep lf e crow bar pivot is 50cm from the end
[7/20, 10:59 PM] Shanice: 1. Wat is the force that must be used to just lift the rock
Answered by Anonymous
W = 100 kg * 9.81 m/s^2 = 981 Newtons
.5 meter * W = 1 meter * F
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