Question 36 of 42intermediate🔧 ApplyNumerical3 marks
The wheel of a car has an outer radius of 28 cm. Calculate how far the car travels after one complete turn of the wheel, and how many times the wheel turns during a journey of 1 km.
(i)
Answer
176 cm
(ii)
Calculate how many times the wheel turns during a journey of 1 km.
Answer
568 2/11 times
Explanation
The distance a car travels in one complete turn of its wheel is exactly the circumference of the wheel, calculated using the formula 2πr. To find the number of turns in a given journey, we divide the total distance traveled by the distance covered in one turn (the circumference).