Two blocks are placed on a surface as shown. Block X has a mass of 1.5 kg and block Y has a mass of 3.5 kg. Taking g = 9.8 N/kg, what is the total weight of...
Question 1 Report
Two blocks are placed on a surface as shown. Block X has a mass of 1.5 kg and block Y has a mass of 3.5 kg.
Taking g = 9.8 N/kg, what is the total weight of the two blocks?
Answer Details
Weight is calculated using W = m g. First find the total mass of the two blocks: 1.5 + 3.5 = 5.0 kg. Then multiply by the gravitational field strength: W = 5.0 x 9.8 = 49 N.
Alternatively, you can calculate each weight separately and add them: block X weighs 1.5 x 9.8 = 14.7 N and block Y weighs 3.5 x 9.8 = 34.3 N, giving a total of 14.7 + 34.3 = 49.0 N. Both methods give the same result. A common error is to use g = 10 N/kg instead of the stated 9.8 N/kg, which would give 50 N. Always use the value of g provided in the question rather than a rounded approximation.
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