- #1
Kildars
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Starting from rest, a speedboat reaches a speed of 3.4 m/s in 1.8 s. What is the boat's speed after an additional 2.6 s has elapsed, assuming the boat's acceleration remains the same?
I have tried finding the velocity for the first 1.8 seconds
[tex]v = v_0 + a t[/tex]
3.4 = 0 + a(1.8)
3.4 / 1.8
a = 1.889
Then tried finding the final velocity assuming it was the same, but using 3.4 as the initial velocity..
v = 3.4 + (1.8)(3.6)
Didn't work.
I also tried v = (1.8)(4.4) adding the total time together, and using v0 as 0.
I have tried finding the velocity for the first 1.8 seconds
[tex]v = v_0 + a t[/tex]
3.4 = 0 + a(1.8)
3.4 / 1.8
a = 1.889
Then tried finding the final velocity assuming it was the same, but using 3.4 as the initial velocity..
v = 3.4 + (1.8)(3.6)
Didn't work.
I also tried v = (1.8)(4.4) adding the total time together, and using v0 as 0.