Question

Q26. How many times a wheel of
radius 28 cm must rotate to go 176m ?​

Answer 1

Step-by-step explanation:

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Answer 2

QUESTION⤵️

How many times a wheel of

radius 28 cm must rotate to go 176m ?

ANSWER⤵️

GIVEN:::-

radius = 28cm

distance travelled= 176m

USED:::-

$number \: of \: rotation = \frac{distance \: travelled}{circumference \: of \: wheel}$

$circumference = 2\pi \: r$

LET'S DO IT:::-

in 1 rotation , wheel travels distance = circumference

THEREFORE,

circumference of wheel = 2πr

$= 2 \times \frac{22}{7} + 28$

$= 2 \times 22 \times 4$

$= 44 \times 4$

$...\implies \purple{176cm}$

$(1cm = \frac{1}{100} m)$

$= 176 \times \frac{1}{100} m$

$... \implies \pink{1.76m}$

NOW GIVEN,

DISTANCE TRAVELLED= 176 m

$no. \: of \: rotation= \frac{176}{1.76}$

$\longrightarrow \orange{no. \: of \: rotation= 100}$

WHEEL ROTATES 100 TIMES

BE BRÃÎÑLY

$\huge\star\mathtt\blue{hope \: it \: helps}\star$