Physics, Questions

Human powered helicopter

Posted by St John's College Access on

Try your hand at some physics problems based on gravity set by St John’s Physics tutor Professor Tony Weidberg…

Q: Many proposals have been made for a human powered helicopter. Consider the case of such a machine with a rotor 10 metres in diameter. Could a human create enough power to overcome gravity? The density of air is 1.23 kg m-3.

click here for the solution

Q: Make a reasoned approximate estimate of the height a “pole-vaulter” could succeed in obtaining.

click here for the solution

Leave a Reply

Please log in using one of these methods to post your comment:

Gravatar
WordPress.com Logo

You are commenting using your WordPress.com account. ( Log Out /  Change )

Google photo

You are commenting using your Google account. ( Log Out /  Change )

Twitter picture

You are commenting using your Twitter account. ( Log Out /  Change )

Facebook photo

You are commenting using your Facebook account. ( Log Out /  Change )

Cancel

Connecting to %s

This site uses Akismet to reduce spam. Learn how your comment data is processed.