A Bicycle Pedal Is Pushed by a Foot with a Force

question 6

Short Answer

A bicycle pedal is pushed by a foot with a force of $a - \mathrm { N }$ as shown. The shaft of the pedal is $12 \mathrm {~cm}$ long.
Find the magnitude of the torque about $P$ correct to two decimal places.
Let $a = 70 , b = 70 ^ { \circ } , c = 10 ^ { \circ }$ .

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Definitions:

Sampling Error

The discrepancy between a sample statistic and its corresponding population parameter, due to the fact that the sample is not a perfect representation of the population.

Systematic Error

A consistent, predictable error associated with the measurement process that affects all data points in the same direction.

Non-random Error

Error in data collection or analysis that systematically distorts the results, often due to biased sampling or measurement.

Binomial Distribution

Distribution of probabilities for a binomial variable.