a. 5
b. 10
c. 15
d.20
e.25
jawaban
V = V0 + ∫a.dt
V = 5i + ∫((2+3t)i + (8+2t)j) .dt
V = 5i + (t^2 + 3/2t^2)i + (8t + t^2)
V = 5i + (2^2 + 3/2.2^2)i + (8.2 + 2^2)
V = 5i + (4 + 6)i + (16 + 4)j
V = 5i + 10i + 20j
V = 15i + 20j
V = √15^2 + 20^2
= 25 (E)
V = 5i + ∫((2+3t)i + (8+2t)j) .dt
V = 5i + (t^2 + 3/2t^2)i + (8t + t^2)
V = 5i + (2^2 + 3/2.2^2)i + (8.2 + 2^2)
V = 5i + (4 + 6)i + (16 + 4)j
V = 5i + 10i + 20j
V = 15i + 20j
V = √15^2 + 20^2
= 25 (E)
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