Homework Statement
A person driving her car at 51 km/h approaches an intersection just as the traffic light turns yellow. She knows that the yellow light lasts only 2.0 s before turning to red, and she is 30 m away from the near side of the intersection (Fig. 2-29). The intersection is 15 m...
Ah, thank you. I've figured it out:
I know that sound can travel 340m in one second, therefore it traveled those 16.5 meters in 0.049 seconds (16.5/340). That means that the ball was rolling for 2.60-0.049 seconds, which is 2.551 seconds.
The ball traveled 16.5m in 2.251 seconds, so I just...
Homework Statement
A bowling ball traveling with constant speed hits the pins at the end of a bowling lane 16.5 m long. The bowler hears the sound of the ball hitting the pins 2.60 s after the ball is released from his hands. What is the speed of the ball? The speed of sound is 340 m/s. Answer...