IT IS CALLED KINETiC ENERGY .......
Answer:
D. Reaches a maximum height of 439.20 meters in 9.2 seconds.
Explanation:
Given
h = –5t²+ 92t + 16
then
h' = 0 when the boulder reaches its maximum height
(–5t²+ 92t + 16)' = - 10t + 92 = 0
⇒ t = 92/10
⇒ t = 9.2 s
the maximum height will be
h = –5(9.2)²+ 92(9.2) + 16
h = 439.20 m
Explanation:
we know
v=u-gt
At max height v=0
uy=usin30
now,25sin37=gt
15.07/9.8=t
t=1.53s to reach max height now to come on ground it takes same time
so time taken t=3.07s
We know ,range=ucos37×t
=25cos37×3.07
max distance=61.3meter
A lightning strike happens so fast, and only hits a point of your body, but if you've noticed that it still completely melts the part of your body that it has stuck? Also the sun is a large mass of that heat, that will melts you the same way as lightning would if it were to continuously strike you all over your body. <span />
