Which of the following best describes acceleration?%0D%0A%0D%0A a%0D%0Athe speed of an object in a certain direction%0D%0A b%0D%0Athe rate at which an object changes its velocity%0D%0A c%0D%0Athe rate at which an object changes its direction%0D%0A d%0D%0Athe speed of an object in constant motion

Answer 1

The correct answer is b) the rate at which an object changes its velocity.