Chemistry, 23.10.2020 01:01, parisaidan366

The elevator in the new office building warns that it can safely lift 300 kg at one time. If John (850 N), Betty (530 N), Robert (740 N) and Alice (610 N) all get in the elevator at once, can the elevator safely carry them up to the third floor?

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The elevator in the new office building warns that it can safely lift 300 kg at one time. If John (8...