A particle moving with a constant acceleration describes in the last second of its motion `36%` of the whole distance. If it starts from rest how long is the particle in motion and through what distance does it moves if it describes 6 cm in the first sec.

Options

A. 5 s, 150 cm
B. 10s, 150 cm
C. 15 s , 100 cm
D. 20 s, 200cm

Answer

A

Explanation

`S=(1)/(2)at^(2)`,`(2n-1)/(n^(2))=(36)/(100)`