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ashna

  • 2 years ago

a motor car covers 1/3 part of total distance with velocity V1 = 10km/hr and second 1/3 part with velocity V2 = 20km/hr and rest 1/3 part with velocity V3 = 60km/hr . What is the average speed of the car ?

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  1. sauravshakya
    • 2 years ago
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    Average speed of the car = (V1+V2+V3)/3

  2. sauravshakya
    • 2 years ago
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    now can u?

  3. ashna
    • 2 years ago
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    Avg speed = 10+20+60 / 3 = 90/3 = 30km/hr correct ?

  4. sauravshakya
    • 2 years ago
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    very correct

  5. sauravshakya
    • 2 years ago
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    u got it?

  6. ashna
    • 2 years ago
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    why the velocities / 3 ?

  7. sauravshakya
    • 2 years ago
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    Actually it was like this: Average speed of the car = 1/3 V1 + 1/3 V2 + 1/3 V3 = (V1+V2+V3)/3

  8. sauravshakya
    • 2 years ago
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    got it?

  9. ashna
    • 2 years ago
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    oh okay .. thanks :)

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