Question

solve it on paper then send me .answer should be correct and no spamming .spamming answer will be reported by me​

Answer 1

$\huge\sf\pink{Answer}$

☞ Avg Speed is 27.70 km/h

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$\huge\sf\blue{Given}$

✭ A car travels ⅓ of its journey with a speed of 20 km/h

✭ It travels another ⅓ of its journey with a speed of 30 km/h

✭ And the final ⅓ of its journey by 40 km/h

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$\huge\sf\gray{To \:Find}$

◈ Average speed of the car?

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$\huge\sf\purple{Steps}$

So here from the Question we may conclude that,

➝ $\sf D_1 = \dfrac{D}{3} \; \to v_1 = 20 \ km/h$

➝ $\sf D_2 = \dfrac{D}{3} \; \to v_2 = 30 \ km/h$

➝ $\sf D_3 = \dfrac{D}{3} \; \to v_3 = 40 \ km/h$

Also we know that,

$\underline{\underline{\sf V = \dfrac{D}{T}}}$

➳ $\sf T = \dfrac{D}{V}$

➳ $\sf T_1 = \dfrac{D_1}{V_1}$

➳ $\sf T_2 = \dfrac{D_2}{V_2}$

➳ $\sf T_3 = \dfrac{D_3}{V_3}$

Remaining answer has been attached!!

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☯ $\underline{\sf Know \ More}$

⪼ $\sf Instantaneous Velocity = \dfrac{dx}{dt}$

⪼ $\sf Average Velocity = \dfrac{Final \ s - Initial \ s}{Time}$

⪼ $\sf Average Acceleration = \dfrac{v-u}{t}$

⪼ $\sf Instantaneous Acceleration = \dfrac{dv}{dt}$

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Answer 2

Explanation:

27.7okkkkk okkkkkkkkk okkkkkkkkk