9 10 11 Points 13 3 (0.0%) Assignment Submission Assignment Scoring Your best su

Question

9 10 11 Points 13 3 (0.0%) Assignment Submission Assignment Scoring Your best submission for each qunstion part is used for your score. 1 4.P011 acting on it. One is a 1,875-N forward push by the water on the propeller, and the other is a 1,400-N resistive force due to the water around the bow. (a) What Is the acceleration of the 1,200-kg boat? 2 m/ (b) If it starts from rest, how far will the boat move in 17.5 s? (c) What will its velocity be at the end of that time? m/s Need Help? Ask Your 1 4.P012 F2 - 360 N. Assume up and to the right are in the positive directions.) Two forces are applied to a car in an effort to move it, as shown in the figure below. (Let Fa -445 N and

Explanation / Answer

(A) from newton's 2nd law,

Fnet = m a

Fnet = 1875 - 1400 = (1200) a

a = 0.396 m/s^2

(B) d = v0 t + a t^2 /2

d = (0 ) + (0.396 x 17.5^2 / 2)

d = 60.6 m

(C) v = v0 + a t = 0 + (0.396 x 17.5)

v = 6.93 m/s

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