Question

Racing greyhounds are capable of rounding corners at very high speeds. a typical greyhound track has turns that are 45 m diameter semicircles. a greyhound can run around these turns at a constant speed of 16 m/s . part a what is its acceleration in m/s2? express your answer to two significant figures and include the appropriate units. a = 11 ms2 submitmy answersgive up correct part b what is its acceleration in units of g ? express your answer using two significant figures.

Answer 1

The relationship between acceleration, velocity and radius is given as:

a = v^2 / r

 

Since we are given a diameter of 45 m, hence the radius is 22.5 m.

a = (16 m/s)^2 / 22.5 m

a = 11.38 m/s^2

 

In 2 significant figures:

a = 11 m/s^2