Question

1. the propeller of a speedboat rotates 650 times per minute. through how many degrees does a point on the edge of the propeller rotate in 2.4 seconds?

Explanation:

Step1: Convert minutes to seconds

1 minute = 60 seconds, so the propeller rotates 650 times in 60 seconds.

Step2: Find rotations per second

Rotations per second = $\frac{650}{60}$ = $\frac{65}{6}$ rotations per second.

Step3: Find rotations in 2.4 seconds

Rotations in 2.4 seconds = $\frac{65}{6}$ × 2.4 = 26 rotations.

Step4: Find degrees rotated

1 full rotation is 360 degrees, so degrees rotated = 26 × 360 = 9360 degrees.

Answer:

9360