Question

एक साइकिल का पहिया 11 किलोमीटर में 5000 चक्कर लगाता है तो पहिए का व्यास ज्ञात कीजिए

Answer 1

Pls post in English. Translate with Google translate.

Answer 2

Answer:

0.7 meters ( approx )

Step-by-step explanation:

Let r be the radius ( in km ) of the wheel,

∵ The distance covered by the wheel in one rotation = $2\pi r$

Thus, the total distance( in km ) covered by wheel in 5000 rotations

$=5000\times 2\pi r$

$=10,000\pi r$

According to the question,

$10,000\pi r=11$

$\implies r = \frac{11}{10000\pi}$

= 0.00035 km

= 0.35 meters, ( ∵ 1 km = 1000 meters )

Thus, the diameter of the wheel = 2r = 2×0.35 = 0.7 meters.