Physics, asked by abrianagabriel2007, 15 days ago

Q9 plz yar koi toh
I will mark brain liest​

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Answered by SugarBae
7

\small \mathsf\green{i) v = 0 }

\mathsf\green{a = - 0.5 m/s²}

\mathsf\green{t = ?}

\mathsf\green{u = 90 × 5/18 m/s = 25 m/s}

\mathsf\green{v = u + at }

 \mathsf\green{0 = 25 + (- 0.5) t }

 \mathsf\green{0= 25 - 0.5t }

 \mathsf\green{0.5 t = 25}

 \mathsf\green{t = 25 / 0.5 }

 \mathsf\green{t = 50 s}

 \mathsf\pink{ii) u = 90 km/h = 90 × 5/18=  25 m/s}

 \mathsf\pink{a = - 0.5 m /s²}

 \mathsf\pink{t = 10 s}

 \mathsf\pink{v = u + at }

 \mathsf\pink{v = 25 + ( - 0.5) 10 }

 \mathsf\pink{v = 25 - 5 = 20 m/s}

Answered by riyakaushik22
2

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hopes it will help you

.xD

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