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017 (part 1 of 2) 10.0 points An elevator accelerates upward at 1.2 m/s2. The acceleration of gravity is 9.8 m/s. What is the upward force exerted by the floor of the elevator on a(n) 84 kg passenger? Answer in units of N. 018 (part 2 of 2) 10.0 points If the same elevator accelerates downwards with an acceleration of 1.2 m/s , what is the upward force exerted by the elevator floor on the passenger? Answer in units of N. C