Answer:
P.E = mgh = 120N
Step-by-step explanation:
v² = u² - 2as
At the top, the velocity is = 0
0² = 4² - 2 x 10 x s
4² = 20s
s = 16/20
s = 0.8metres.
It rose only 0.8metres.
Therefore P.E = 15 x 10 x 0.8
:. P.E = 15 * 8
:. P.E = 120N
A polygon has 5 or more sides and is made of 4 triangles your asking for the name of it which is confusing because then you list a 8,6,7 and 4 sided shapes can you explain that? so it could be A,B, or C but only one you can make in to 4 triangle so i would go with B
Answer:
1 3/11
Step-by-step explanation:
239% because
2.0=200
and
,39=39
so that equals
239%
Brian-90×5+85=535
Christina-90×5+65=515
So after 5 weeks Brian will do 535 push ups and Christina will have done 515.
