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A uniform plank of wood of 110cm is balanced 30cm from one end when a lead of 0.08kg is hung at 0 mark end . calculate the weight of the plank
A uniform plank of wood of 110cm is balanced 30cm from one end when a lead of 0.08kg is hung at 0 mark end . calculate the weight of the plank
Answers
GPT 3.5
To calculate the weight of the plank, we can use the principle of moments (torque):
Weight of lead * distance from pivot = weight of plank * distance from pivot
0.08kg * 30cm = x * 110cm
2.4 kgcm = 110x
x = 2.4 kgcm / 110cm
x = 0.0218kg
Therefore, the weight of the plank is approximately 0.0218 kg, which is equivalent to 21.8 grams.
Weight of lead * distance from pivot = weight of plank * distance from pivot
0.08kg * 30cm = x * 110cm
2.4 kgcm = 110x
x = 2.4 kgcm / 110cm
x = 0.0218kg
Therefore, the weight of the plank is approximately 0.0218 kg, which is equivalent to 21.8 grams.