Posted by Go Hurricanes on Thursday, March 19, 2009 at 11:34am.
a bug is sitting on a long playing record going at a constant speed.
Given: The record is turnning at a constatn reate of 33.3 revloutions per minute. The bug, whose mass is 1.4g, is sitting 12cm from the center of the record.
Find;
a. how long does it take the bug to go around once?
I am not sure if i am overthinking this or not but would it be but would it be like this.
d=2pir = 73.36 cm on 1 revolution. so the bug will travel 73.36cmX33.3 rpm=2442.88cm in one minute, than divide 2442.88cm/60 seconds to = 40.71cm a second. than 73.36cm divide by 40.71 cm/sec = 1.8 seconds for the length of ride?
b. how fast is the bug going?
v=d/t or 40.75 cm/second
c. how much centripetal force acts on the bug.

physics  bobpursley, Thursday, March 19, 2009 at 12:53pm
a,b correct.
Centripetal force= mass*v^2/r
You can work this in the cgs system (centimeter, gram, second) and force will be in dynes, however, I recommend converting to SI units (meters, kg, seconds) and force will be in Newtons.
Answer This Question
Related Questions
 Physics  A bug is on the rim of a 78 rev/min, 12 in. diameter record. The ...
 physics  A bug rides on a phonograph record. In which direction does the change...
 Physics  A car (mass 800 kg) is traveling with a speed of 37 mi/h. A bug (mass ...
 Physics  A car (mass 880 kg) is traveling with a speed of 44 mi/h. A bug (mass ...
 Physics  A car (mass 880 kg) is traveling with a speed of 44 mi/h. A bug (mass ...
 Physics  A car (mass 880 kg) is traveling with a speed of 44 mi/h. A bug (mass ...
 Physics  A bug rides on a turntable which is rotating at 3 rad/s. The moto is ...
 College Physics  A car (mass 880 kg) is traveling with a speed of 44 mi/h. A ...
 Math  If a bug crawls 2cm up and 1cm down each day how long does it take for ...
 Physics  A thin massless horizontal pipe rotates about a vertical axis with ...
More Related Questions