Can someone help me with a simple physics question?

Azndude51

Platinum Member
Sep 26, 2004
2,842
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Imagine a frictionless pulley (a solid cylinder) of unknown mass M and radius r = 0.22 m is used to draw water from a well. A bucket of mass m = 1.62 kg is attached to a cord wrapped around the cylinder. A bucket starts from rest at the top of the well and falls for t = 2.79 s before hitting the water h = 4.82 m below the top of the well. Neglect the mass of the cord.

1. What is the linear acceleration of the bucket?
2. What is the angular acceleration of the rotating pulley?

How would I go about finding those answers (what equations)?
 

FleshLight

Diamond Member
Mar 18, 2004
6,883
0
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Plug it into the respective linear and angular kinematic equations.

You know time, delta y, r, and a mass.
 

Azndude51

Platinum Member
Sep 26, 2004
2,842
4
81
Originally posted by: FleshLight
Plug it into the respective linear and angular kinematic equations.

You know time, delta y, r, and a mass.

The problem is that i don't know what the equations are.