V = u + at
2.8 = u + a*8.5
2.8 = u + 8.5a
s = ut + 0.5at^2
40 = u*8.5 + 0.5*a*8.5^2
40 = 8.5u + 36.125a
(2.8 = u + 8.5a) * 8.5
23.8 = 8.5u + 72.25a
Subtract those equations
16.2 = - 36.125a
a = 0.448
2.8 = u + (8.5*-0.448)
2.8 = u - 3.8
u = 6.6 m/s
Answer:
c. acute
Step-by-step explanation:
all angles are less than 90 degrees, so it is acute
The volume of prism can find as the volume of pyramid multiplying with 3.
Answer: 90x3 = 270 m³ (volume of prism)
Greater than 5.4 i hate the 20 characters rule
