puceshark951Lv1
27 Oct 2021
Problem 15
Page 43
Section: Problems
Chapter 2: Describing motion: Kinematics in one dimension
Textbook ExpertVerified Tutor
27 Oct 2021
Given information
Step-by-step explanation
Step 1.
We know that :the average speed
defined as the distance divided by the elapsed time
of the sound equals :
Where :
sound is the average speed of the the sound.
ball is the average speed of the the bowling ball.
is the average distance travelled by the car .
is the total time elapsed .
is the time the bowling ball takes .
Strategy :we know the total time that the bowling ball take to reach the and the sound take to return the person , from givens we know the speed of the sound and the distance travelled so we can calculate the time elapsed in that part subtracting that from the total time to get the time the bowling ball take ,So from time elapsed and the distance we can calculate the velocity of the bowling ball .
from given:
plugging the information we get:
:
We know that the total time :
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