What is its speed at the top of the second hill

Reference no: EM13326206

On a roller coaster the first hill has a height of 30m while the second hill as a height of 15m. If the coaster has a speed of 2m/s at the top of the first hill, what is its speed at the top of the second hill if 2% of the energy was lost to friction?

Reference no: EM13326206

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