How we represent the newton (unit of force)?
a) P
b) N
c) O
d) M
Multiple Forces:
A book is lying on the table. How many force acting upon it?
a) 1
b) 2
c) 3
d) 4
Explanation:1. Force of weight of book pushing table down and 2. Force of table pushing the book up.
Net Forces:
The net force is the vector sum of all the forces that act upon an object. That is to say, the net force is the sum of all the forces, taking into account the fact that a force is a vector and two forces of equal magnitude and opposite direction will cancel each other out.
How can we determine the net force acting on the object?
a) to subtract all the forces
b) to add all the forces acting on the object
c) to calculate the average of forces
d) all of these
……..is the combined effect of all the forces acting on an object.
a) Pressure
b) Force
c) Net force
d) Work
