Racing greyhounds are capable of rounding corners at very high speeds. a typical greyhound track has turns that are 45m diameter semicircles. a greyhound can run around these turns at a constant speed of 12m/s .
what is its acceleration in m/s^2? what is its acceleration in units of g?

An electron moves with a constant horizontal velocity of 3.0 × 106 m/s and no initial vertical velocity as it enters a deflector inside a tv tube. the electron strikes the screen after traveling 26 cm horizontally and 19 cm vertically upward with no horizontal acceleration. what is the constant vertical acceleration provided by the deflector? (the effects of gravity can be ignored.)