Read the following statements and choose the correct answer.
a) For a freely falling body the average velocity is proportional to square root of height of fall.
b) For a freely falling body the displacements in successive equal time intervals are in the ratio 1:4:9:
c) For a vertically projected body the displacement during last second of time of flight changes with velocity of projection.
d) For a body projected from the top of the tower the displacement of the body is negative when the body crosses the point of projection.

Options

A. a, c, d are true
B. both a, b are true
C. b & c are true
D. c and d are true

Answer

A