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Contests/Gnit Sunday Open 003 (GSO003)/Problem 2 Magnetic Levitation Coaster Simulation and Slide Speed
Problem 2

Magnetic Levitation Coaster Simulation and Slide Speed

Finished
100 ptsLv.2 BeginnerMechanics
2026/04/05 19:30〜2026/04/05 21:00
Author: admin

Problem Statement

A new amusement park attraction is being designed: a "linear coaster" that slides down a straight slope, with magnetic levitation technology eliminating all friction between the car and the track.

Air resistance is negligible. It is theoretically known that the acceleration aaa (rate of speed increase per second) of the car sliding down is proportional to the slope height hhh and inversely proportional to the slope length LLL. That is, with some unknown proportionality constant kkk:

a=k×hLa = k \times \frac{h}{L}a=k×Lh​

The design team performed a preliminary test using computer simulation.

A test slope of length L0L_0L0​ and height h0h_0h0​ was built in the simulation space, and the car was released from rest at the top. The measured acceleration was a0a_0a0​.

Based on this result, a full-scale slope of length L1L_1L1​ and height h1h_1h1​ was designed. When the car is released from rest at the top of the full-scale slope, find the speed vvv of the car at time TTT after release.

Constraints

  • L0=5.0 mL_0 = 5.0 \ \mathrm{m}L0​=5.0 m
  • h0=2.0 mh_0 = 2.0 \ \mathrm{m}h0​=2.0 m
  • a0=3.92 m/s2a_0 = 3.92 \ \mathrm{m/s^2}a0​=3.92 m/s2
  • L1=50.0 mL_1 = 50.0 \ \mathrm{m}L1​=50.0 m
  • h1=15.0 mh_1 = 15.0 \ \mathrm{m}h1​=15.0 m
  • T=4.0 sT = 4.0 \ \mathrm{s}T=4.0 s

Input Format

Find the speed v [m/s]v \ [\mathrm{m/s}]v [m/s] and give the answer as a positive integer equal to the value multiplied by 100100100.

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