Question

what is time and pediod



n
n
n


n
n
n

Answer 1

:-) Hi dear.....[^_^] Let me explain you what is time period.


TIME PERIOD :

A time period is denoted by T is the time needed for one complete cycle of vibration to pass in a given point. As the frequency of a wave increases, thetime period of the wave decreases.

★ HOPE IT IS USEFUL !! ★

»» Follow me if you like ««

Answer 2

after 2 seconds velocity is v
v = u+at
u=0 ,a=-g
v = -2g =-20m/s (downward)
distance covered in 2 second = S
v2 = u2+2aS
u=0 , a=-g
S = v2/2a = 400/20 =20
it has covered 20 m so remaining distance from ground is 200-20 = 180m
now gravity there is no gravity effect so a=0
now we use speed = distance/time
t = d/v
distance = 180 ,velocity = 20
t = 180/20 = 9sec
thus body will take further 9 sec to reach the ground...