AIM: TO MEASURE VELOCITY WITH A TICKER TIMER

In an experiment to measure a constant velocity with a ticker timer the following sample of ticker tape was obtained

Given that 50 dots are printed per second, calculate the velocity of the trolley pulley the ticker tape.

SOLUTION

Each dot is printed in 1/50 of a second.

Since there are 5 dots, the time, t, is given by

Thus, the velocity v is given by