Acceleration Due to Gravity Video Lessons

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Problem: Planet Sec is spherical and has uniform density. Its radius is R = 5.00 x 106 m and its mass is M = 4.00x1022 kg. A rock is released from rest from a height of 20.0 m above the surface of the planet. How many seconds does it take the rock to reach the surface of the planet? Air resistance can be neglected.

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Problem Details

Planet Sec is spherical and has uniform density. Its radius is R = 5.00 x 106 m and its mass is M = 4.00x1022 kg. A rock is released from rest from a height of 20.0 m above the surface of the planet. How many seconds does it take the rock to reach the surface of the planet? Air resistance can be neglected.

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What scientific concept do you need to know in order to solve this problem?

Our tutors have indicated that to solve this problem you will need to apply the Acceleration Due to Gravity concept. You can view video lessons to learn Acceleration Due to Gravity. Or if you need more Acceleration Due to Gravity practice, you can also practice Acceleration Due to Gravity practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Juan took 3 minutes and 12 seconds to solve this problem. You can follow their steps in the video explanation above.