Acceleration of an object

Estimate the acceleration of an object due to gravitational force.


  1. mass (weights)
  2. ticker tape
  3. ticker machine
  4. PSU
  5. tape measure
  6. sticky tape


  1. Connect sticky tape to one end the ticker taper and thread the other end through the ticker tape machine.
  2. Connect the ticker tape machine to the AC connectors on the PSU and set the PSU to ~6VAC.
  3. Connect weight (mass) to the end of the ticker tape with the sticky tape on and turn on PSU and drop mass from min. of one meter.
  4. Check for dots made by the ticker machine and pic a section of ~500mm of ticker tape and measure between the first and last dots in the section, then count up the intervals between the dots.
  5. Work out the acceleration now by doubling the intervals and divide by 100 to get a decimal value (t)

using the formula a={\frac{2s}{t^2}}

S = length of tape section

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