(a) Explain the statement the acceleration of free fall cohesion.

(b) State two factors that can affect the value of the narrow glass tube has a concave meniscus while acceleration of free fall at a place.

A particle is projected horizontally at 10 ms\(^{-1}\) from a height of 45m. Calculate the horizontal distance covered by the particle before hitting the ground. [g = 10ms\(^{-1}\)]

A particle dropped from a vertical height and falls freely for a time interval t. Sketch and explain a graph to show how h varies with (a) t (b) t\(^{2}\).

The diagram below represents the graph of the force applied in stretching a spiral spring against the corresponding extension produced within its elastic limit.

Using the notations on the graph, determine the:

(a) force constant of the spring;

(b) work done in stretching the spring from 10 x 10\(^{-2}\)m to 20 x 10\(^{-2}\)m.

(a) Distinguish between the forces of adhesion and cohension

(b) Give one example each of the forces of adhesion and cohesion.