Question

if sound travels 1,700 meters in 5 seconds, what is its speed? 1 point 340 m/s if my house is 15 km away, and it takes me 0.2 hours to drive to school, what is my average speed (in m/s) along the journey? 1 point 20.83 m/s how long will it take a horse to travel 400 meters if it is traveling at 5 m/s? 1 point choose

Explanation:

Step1: Recall speed formula

Speed $v=\frac{d}{t}$, where $d$ is distance and $t$ is time.

Step2: Solve first problem

Given $d = 1700$ m and $t = 5$ s, then $v=\frac{1700}{5}=340$ m/s.

Step3: Solve second problem

First convert distance to meters: $15$ km = $15\times1000 = 15000$ m. Convert time to seconds: $0.2$ hours=$0.2\times3600 = 720$ s. Then $v=\frac{15000}{720}\approx20.83$ m/s.

Step4: Solve third problem

Given $d = 400$ m and $v = 5$ m/s. Using $t=\frac{d}{v}$, we get $t=\frac{400}{5}=80$ s.

Answer:

1. 340 m/s
2. 20.83 m/s
3. 80 s