how many times will the wheel of a car rotate in a journey of 88 kilometre if it is known that the diameter of the wheel is 56 CM? (take r = 22/7)
Answers
Answer:
The wheel will make 50,000 revolution to cover 88km distance .
Step-by-step Explanations :
Given: Diameter of wheel (D) = 56cm
To find : How many Revolution will the wheel make to travel 88km = ?
Diameter of wheel (D) = 56cm ------- ( given )
We know that,
Radius of wheel (R) = D/2 = 56/2 = 28cm
Also,
Circumference of wheel = 2πR
Substituting the given value in above formula we get,
Circumference of wheel = 2 × 22/7 × 28
= 176cm
= 0.00176 km ----------( since 1km = 100000cm )
So 0.00176 km is the Distance covered by wheel in 1 revolution.
Therefore the total number of revolution it takes to cover 88km is ,
No of revolution = total distance / distance covered in 1 revolution
Substituting the values in above formula we get,
No of Revolution = 88/0.00176
= 50,000
Hence the wheel will make 50,000 revolution to cover 88km distance .