Question

a car moving with a constant speed of 10m/s covers two rounds of a circular track in 10s find the radius of the circular track?​

Answer 1

Answer:

$d = s \times t \\ d = 20 \times 10 \\ d = 200m \\ circumference \: is \: 200m \\ 200 = 2 \times 3.14 \times r \\ \frac{200}{2} = 3.14 \times r \\ 100 = 3.14 \times r \\ \frac{100}{3.14} = r \\ = 31.84$

The radius is 31.84 m

Answer 2

Answer:circumference=10×10

=100

100=2×pie×r

50/pie=r

Explanation: