B3-QRT63: PERSON IN AN ELEVATOR-SCALE READING 11. person who weighs 500 N is standing on a scale in an elevator. The elevator is identical in all cases. The velocity and acceleration of the elevators at the instant shown are given. A レ=3m/s wv 2 m/s v= 3 m/s v= 1 m/s a=2 m/s? a=2 m/s2 a = 0 a=2 m/s2 F H. v33 m/s v = 3 m/s v= 3 m/s レ=0 a=2 m/s2 a=2 m/s2 a = 0 a= 9.8 m/s2 (a) List the cases where the scale reading is greater than 500 N. Explain your reasoning. (b) List the cases where the scale reading is less than 500 N. Explain your reasoning. (c) List the cases when the scale reading is equal to the scale reading of 500 N. Explain your reasoning. E

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The tension at which a fishing line snaps is commonly called the line's "strength." What minimum strength is needed for a line that is to stop a salmon of weight 92 N in 12 cm if the fish is initially drifting horizontally at 2.7 m/s? Assume a constant deceleration. Number i Units

A skater of mass m standing on ice throws a stone of mass M with speed v in a horizontal direction. Find the distance over which the skater will move in the opposite direction if the coefficient of kinetic friction between the skater and the ice is  ?k . (Use any variable or symbol stated above along with the following as necessary: g.)Δx =