hw after an unfortunate accident at a local warehouse you have been contracted t
ID: 2114052 • Letter: H
Question
hw
after an unfortunate accident at a local warehouse you have been contracted to determine the cause k jib crane collapsed and injured a worker. An image of this type of crane is shown in the figure below, he horizontal steel beam had a mass of 86.80 kg per meter of length and the tension in the cable was T = 12.17 kN. The crane was rated for a maximum load of 1.000 x 103 lbs. If d = 6.160 m, s = 0.630 m, (= 1.800 m and h = 2.070 m. what was the load on the crane before the collapse? What was the magnitude of force at the attachment point P? The acceleration due to gravity is g - 9.810 m/s2.Explanation / Answer
Bucket 2 holds more water
Length of bucket 1 from balance point = L1 = 183/2 +2.23 =93.73 cm
Length of bucket 2 from balance point = L2=183/2 - 2.23 = 89.27
Length of bucket 1 from balance point =W1 = assume 100 kg
Length of bucket 1 from balance point = W2
Balancing torque about balance point - W1 x L1= W2 x L2
W2 = 100 x 93.73 / 89.27 = 104.996 = 105 kg
Extra weight in bucket 2 = 5 kg = 5 %
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