A block is on a frictionless horizontal table, on earth. This block accelerates at 1.9 m/s² when a 90 N horizontal force is applied to it. The block and table are then set up on the moon where the acceleration due to gravity is 1.62 m/s². What is the weight of the block on the moon? A) 77 N B) 67 N C) 58 N D) 48 N E) 39 N

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Quizplus · Accepted Answer

The mass of the block is calculated using F = ma on Earth: m = 90 N / 1.9 m/s² = 47.37 kg. On the moon, weight = mass × moon's gravity = 47.37 kg × 1.62 m/s² = 76.7 N, approximately 77 N.

A Block Is on a Frictionless Horizontal Table, on Earth