Fix the circular motion formula

Exercise and reference answers

Questions

1. Statement parts

   1. mu
   2. =
   3. v^2
   4. /
   5. r

   Correction

   rg — friction balances mv^2/r against mu.mg, so g belongs below

   Incorrect part

   r

2. Statement parts

   1. T
   2. sin
   3. theta
   4. =
   5. m
   6. g

   Correction

   cos — the vertical component balances the weight

   Incorrect part

   sin

3. Statement parts

   1. omega
   2. =
   3. r
   4. tan
   5. theta
   6. /
   7. g

   Correction

   g on top and r below, all under a square root

   Incorrect part

   r

Instructions

One token in each line is wrong. Tap it, then read the correction.