The mass of a roller-coaster car, including its passengers, is 519 kg. Its speed

Question

The mass of a roller-coaster car, including its passengers, is 519 kg. Its speed at the bottom of the track in the figure below is 18 m/s. The radius of this section of the track is r1 = 26m. Find the force that a seat in the roller-coaster car exerts on a 47-kg passenger at the lowest point.

magnitude N direction ---Select---upwardsdownwards The mass of a roller-coaster car, including its passengers, is 519 kg. Its speed at the bottom of the track in the figure below is 18 m/s. The radius of this section of the track is r1 = 26m. Find the force that a seat in the roller-coaster car exerts on a 47-kg passenger at the lowest point.

Explanation / Answer

F(net) = mg + mv^2/r
F(net) = 47[9.8+(18 x 18/26)]
F(net) = 47[9.8+12.46]
F(net) = 47 x 22.26 = 1046.22 N

direction upward

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