Given the position function
<em>s(t)</em> = 3 - cos(<em>t</em> )
differentiate once to get the velocity, and twice to get the acceleration:
<em>v(t)</em> = <em>s'(t)</em> = sin(<em>t </em>) → <em>v</em> (4.3 s) ≈ -0.92
<em>a(t)</em> = <em>s''(t)</em> = <em>v'(t)</em> = cos(<em>t </em>) → <em>a</em> (4.3 s) ≈ -0.40
The acceleration is negative, so the particle is slowing down.
Answer:
Step-by-step explanation:
Distributive property:
a(b-c) = a*b + a*-c = ab-ac
13.- 11(s+9) = 11*s + 11+9 = 11s+99
14.- -21(x-7) = -21*x -21*-7 = -21x + 147
15.- 13(20-a) = 13*20 + 13*-a = -13a + 260
16.- -8(17+b) = -8*17 -8*b = -8b - 136
17.- (r+1.68)(-0.1) = -0.1(r+1.68) = -0.1*r - 0.1*1.68 = -0.1r - 0.168
18.- 3.25(5.02-t) = 3.25*5.02 + 3.25*-t = -3.25t + 16.315
Answer:
i need and image
Step-by-step explanation:
I would say c.15
Because I said so
Answer:
15cm
Step-by-step explanation:
© the envelope is 15cm rall.
