Answer:
a) The forces acting on the box and the table are as follows:
Weight of the box acting downwards (due to gravity)
Normal force acting upwards (from the table)
Frictional force (if the box is not moving, the frictional force will be equal and opposite to any force applied to move it)
b) The weight of the box is given by:
Weight = Mass x Acceleration due to gravity
Weight = 1.5 kg x 9.81 m/s^2
Weight = 14.715 N
The weight acts downwards due to gravity.
The counteraction force of the table is equal in magnitude and opposite in direction to the weight of the box, as per Newton's Third Law of Motion.
Therefore, the counteraction force of the table on the box is also 14.715 N, but it acts upwards to balance the weight of the box.
Step-by-step explanation: