Question

A car travels first 30 km with a uniform speed of 60 km/h and then next 30 km with a uniform speed of 30 km/h. Find average speed of the car during the journey. ​

Answer 1

Answer:

When a body travels equal

distance with different velocities V1 and V2 , then Average Velocity is Calculated

as

+ V2)

Average Velocity = 2V1V2 / (V1

here, V1 = 60 km/hr and V2 = 40

km/hr therefore,

Average Velocity = 2*60*40 / = (60+40 )= 480/100 = 48 km/hr

Also we know that,

Average Velocity = Total Distance /

Total Time Taken

48 = 60 / Total Time Taken or Total Time Taken = 60/48

5/4 Hrs.

Explanation:

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Answer 2

• ᴀɴs-:

Total distance covered by car = 60 km

And, total time taken in journey t:-

-: ᴛ1+42

5/4 ʜ.

Therefore, Average Speed

ᴛᴏᴛᴀʟ ᴅɪsᴛᴀɴᴄᴇ-: 60ᴋᴍ

ᴛɪᴛᴀʟ ᴛɪᴍᴇ-: 5/4 ʜ

• ʜᴇɴᴄᴇ,ᴀɴs ɪs 48ᴋᴍ/ʜ.