QUESTION 17

1. The moment of a force about a pivot point is;

   	a.	The force multiplied by the perpendicular distance fro the pivot point to the direction of the force
   	b.	the distance from the pivot to the point of application of the force, times the component of the force perpendicular to the distance
   	c.	the algebraic sum of the moments of all the components of the force times their recpective moment arms from the pivot point
   	d.	All of a), b) and c).
   	e.	none of a), b), c) and d).

1 points  

QUESTION 18

1. one half of the sum of the maximum and the minimum speeds is the average speed of an object undergoing:

   	a.	A uniform motion
   	b.	None of the above
   	c.	A uniformly decelerated motion
   	d.	A uniformly accelerated motion
   	e.	A uniformly accelerated or a uniformly decelerated motion