Problem: An object is launched from the ground with an unknown initial speed directed at 30° above the horizontal. If it reaches a maximum height of 40 m before returning to the ground, find its initial speed.

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Problem Details

An object is launched from the ground with an unknown initial speed directed at 30° above the horizontal. If it reaches a maximum height of 40 m before returning to the ground, find its initial speed.

Frequently Asked Questions

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 Symmetrical Launch concept. You can view video lessons to learn Symmetrical Launch. Or if you need more Symmetrical Launch practice, you can also practice Symmetrical Launch practice problems.

How long does this problem take to solve?

Our expert Physics tutor, Patrick took 2 minutes and 25 seconds to solve this problem. You can follow their steps in the video explanation above.