Match the word with its definition. column a1 . rotational speed 2 . tangential speed 3 . centripetal force 4 . centripetal acceleration 5 . newton's second law 6 . newton's first law column ba. 1 revolutions per minute (rpm) b. instantaneous linear speed of an object in circular motion c. center-seeking change in direction of velocity d. an object in motion stays in motion unless an external force acts on it e. f = ma f. force that produces uniform circular motion

Explanation:

1. Rotational speed : It is defined as the number of revolutions per unit time i.e. revolution per minute.

2. Tangential speed : Instantaneous linear speed of an object in circular motion.

3. Centripetal force : This force acts on object when it moves in a circle. It is a force that produces uniform circular motion.

4. Centripetal acceleration : center-seeking change in direction of velocity

5. Newton's Second Law : This law defines the magnitude of force acting on the object. It is given by, F = m × a

6. Newton's First Law : An object in motion stays in motion unless an external force acts on it.  

answer; ///i believe that the correct answer is (45*) at a 45 degree check first good