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Physics Phun 1

A cache by hatlevip Send Message to Owner Message this owner
Hidden : 11/23/2009
Difficulty:
4 out of 5
Terrain:
1.5 out of 5

Size: Size:   micro (micro)

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Geocache Description:


*** NOT AT THE POSTED COORDINATES! ***

To find this cache you must solve these three physics problems: The final coordinates are of the form

N 44 5A.ACC
W 93 1B.BDD

1. For no apparent reason a canon sits atop a cliff and decides to fire on a target below. The projectile leaves the canon at a speed of 10.34m/s at an angle of 45 degrees. The projectile is in the air for 4.24s and directly hits the target! How high is the cliff and how far away is the target from the base of the cliff?

Height of cliff = AA
Distance to target = BB

2. A 75kg person stands on circular piston A of a hydraulic pump. A 1200kg elephant is standing on piston B (diameter = 1.6m). If the person wants to lift the elephant what is the minimum diameter of piston A?

Diameter of piston A = CC

3. A 10g bullet is fired horizontally into a 300g wooden block initially at rest on a horizontal surface and becomes embedded in it. The coefficient of friction between block and surface is 0.5. If the bullet has a velocity of 255.13m/s when it collides with the block then how far does the combined system slide?

Distance system slides = DD

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*** Congrats to pfalstad on the FTF! ***

Additional Hints (Decrypt)

0.4 = 04

Decryption Key

A|B|C|D|E|F|G|H|I|J|K|L|M
-------------------------
N|O|P|Q|R|S|T|U|V|W|X|Y|Z

(letter above equals below, and vice versa)