Question

question 14 (4 points)
listen
students are setting up an experiment to calculate the power exerted by a variety of robots. which proposal allows them to gather the correct data to calculate power?
give each robot the same package and measure how long each one takes to reach the same height.
give each robot a different package and see how high each one can lift it.
give each robot a different package and measure the force each one can exert on it.
give each robot the same package and measure how high each one can lift it.

Explanation:

To calculate power (\(P = \frac{W}{t}\), where \(W = Fd\) and for lifting, \(F = mg\) (same mass here), \(d\) is height), we need work (\(W\)) and time (\(t\)). If each robot lifts the same package (same force, same height, so same work \(W = mgh\)), measuring time (\(t\)) to reach that height allows \(P=\frac{W}{t}\) calculation. Other options vary force or height, making work inconsistent or not measuring time.

Answer:

A. Give each robot the same package and measure how long each one takes to reach the same height.