You drive on interstate 10 from san antonio to houston, half the time at 51 km/h and the other half at 71 km/h. on the way back you travel half the distance at 51 km/h and the other half at 71 km/h.
what is your average speed (a) from san antonio to houston, (b) from houston back to san antonio, and (c) for the entire trip? (d) what is your average velocity for the entire trip?

Part a)

Part b)

Part c)

Part d)

average velocity must be ZERO

Explanation:

While he drive San Antonio to Houston

Half the time move with speed 51 km/h and next half his speed is 71 km/h

so we have

so average speed is given as

Part b)

While he move from Houston to San Antonio half the distance is moved with 51 km/h and next half distance with 71 km/h

so we have

so average speed is given as

Part c)

Average speed for entire trip

Part d)

Since total displacement of entire trip is zero

so average velocity must be ZERO

u can delete ur account.

1. go on google and write

2 open this and click on your profile pic and if your profile is not appearing, then u have to log in.

3. when u click on your profile pic, there appears four options on the top.

4. click on the 1st option and scroll down and go at the bottom.

5. click on edit profile.

6. there appears a option 'prefernces' and at that option at the right side , 'edit' is written.

7. click on the edit option.

8. there is a option " i want to delete my account" and click on that.

hope this u

and ur welcm

: )

the answer is 3.1 his answer is wrong mines is right