0.15. The diameter of the wheel of a vehicle is 1.4 m. How many rotations will the wheel complete
in travelling a distance of 2.2 km?
Solution:
Answers
Answered by
341
Given :
- The diameter of the wheel of a vehicle is 1.4 m.
To find :
- How many rotations will the wheel completein travelling a distance of 2.2 km ?
Solution :
- Diameter of wheel = 1.4 m
- Radius of wheel = 1.4/2 = 0.7m
The rotations will the wheel complete in travelling a distance of 2.2 km
- 2.2km = 2.2 × 1000 = 2200 m
500 rotations will the wheel complete in travelling a distance of 2.2km
_________________________________
Answered by
271
Answer:
Given :-
- The diameter of the wheel of a vehicle is 1.4 m.
To Find :-
- How many rotations will the wheel complete in traveling a distance of 2.2 km.
Formula Used :-
where,
- r = Radius
Solution :-
First, we have to find the radius,
As, we know that,
★ ★
Then,
↦
➦
Now, we have to find circumference of a circle,
Given :
- Radius = 0.7 m
According to the question by using the formula we get,
⇒
⇒
⇒
⇒
➠
Hence, the circumference of a circle is 4.4 m.
Now, we have to find how many rotations will the wheel complete in traveling a distance of 2.2 m,
As we know that,
✧ 1 kilometres = 1000 m ✧
Then, 2.2 km = 2.2 × 1000
2200 m
Hence, number of rotation will be,
↪
↪
↪
➤
500 rotations will the wheel complete in traveling a distance of 2.2 m.
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