Question

223
13. A body thrown vertically up with a velocity'u'
reaches the maximum height 'h' after 'T' second.
Correct statement among the following is
a)at a height h/2 from the ground its velocity is u/2
b)at a time 'T' its velocity is 'u'
c)at a time '27' its velocity is '-u'
d)at a time '2T' its velocity is '-6u'​

Answer 1

Answer:

b option

Explanation:

as the velocity is constant once ball is thrown upward

Answer 2

Explanation:

(a) at h/2 vel = u²/4 is correct answer

but given at h/2 ,vel= u/2 is wrong ans

(b) At time T the velocity = 0

but given at time T, vel = u is wrong.

(c) meaning less statement

(d) At the time 2T the velocity = -u

but given at 2T , the velocity -6u is wrong

Therefore all options are wrong.

hope this helps you