Advertisements
Advertisements
प्रश्न
The wheel of a bullock cart has a diameter of 1.4 m. How many rotations will the wheel complete as the cart travels 1.1 km?
Advertisements
उत्तर
Diameter of the wheel, d = 1.4 m
Circumference, c = πd
= `22/7xx1.4`
= 22 × 0.2
= 4.4 m
Distance covered in 1 rotation = circumference of the wheel = 4.4m
∴ Total number of rotations taken by wheel = `"total distance"/"circumference"`
= `(1.1 xx 1000)/4.4`
= `(11 xx 1000)/44`
= `11000/44`
= 250
Hence, the wheel of the bullock cart will complete 250 rotations as the cart travels 1.1 km.
संबंधित प्रश्न
A brooch is made with silver wire in the form of a circle with diameter 35 mm. The wire also used in making 5 diameters which divide the circle into 10 equal sectors as shown in Fig. Find:
(i) the total length of the silver wire required
(ii) the area of each sector of the brooch
If the circumference of a circular sheet is 154 m, find its radius. Also find the area of
the sheet. (Take `pi = 22/7`)
In the given figure, if A(P-ABC) = 154 cm2 radius of the circle is 14 cm, find
(1) `∠APC`
(2) l ( arc ABC) .
The areas of two circles are in the ratio 4: 9. What is the ratio between their circumferences?
Find the diameter of the sphere for the following :
Surface Area = 221. 76 cm2
Each wheel of a car is of diameter 80 cm. How many completer revolutions does each wheel make in 10 minutes when the car is traveling at a speed of 66 km per hour?
The circumference of a circle exceeds its diameter by 18 cm. find the radius of the circle.
A circular racing track has inner circumference 528 m and outer circumference 616 m. Find the width of the track.
A bucket is raised from a well by means of a rope wound round a wheel of diameter 35 cm. If the bucket ascends in 2 minutes with a uniform speed of 1.1 m per sec, calculate the number of complete revolutions the wheel makes in raising the bucket.
The area of a square is 100 cm2. The circumference (in cm) of the largest circle cut of it is ______.
