plz tell this fast and no spam plzzz do it on copt
Attachments:
Anonymous:
what ??
Answers
Answered by
2
h = ut +gt^2/2
h = 0+ 10T^2/2
h = 5T^2
T = root(h/5)
in T/5 seconds it travelled
H = 5T^2/25 = T^/5
now h-H be the height above the ground at T /5 seconds
h-H = 5T^2-T^2/5 = h-h/25 { h= 5T^2}
h-H = h (1-1/25)
= 24h/25
option A is correct
Similar questions