A simple elevator ride can teach you quite a bitabout the nonmal force as this r

Question

A simple elevator ride can teach you quite a bitabout the nonmal force as this rider below can hopefully tell you. There are three different scenarios given, detailing the nder's experience in an unnamed hotel. For each scenario, calculate the normal force, FNa acting on the rider it his mass is m 76.6 kg and the acceleration due to gravity g 9.81 m/s. In scenario 1, the elevator has constant velocity. In scenario 2 the elevator is moving with upward acceleration 5.51 Finally, in scenario 3, unfortunately for the rider, the cable breaks and the elevator accelerates downward at a-981 m/s2 Constant velocity Number Number Number NJ Give up view Solution checks Answer 0 Next Exit

Explanation / Answer

constant velocity =

Force = mg = 76.6 x 9.8 = 750.68 N

upward acceelrattion :

force = normal reaction = m(g + a) = 76.6 x 15.31= 1172.7 N

downward acceleration :

force = normal reaction = m (g-a) = 76.6 x 9.8 - 9.8) = 0 = weightless = freefall

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