29 August, 02:38
A 960 kg motorboat accelerates away from a dock at 2.3 m/s2. t Its propeller provides a thrust force of 4.1 kN.
29 August, 03:09
m = 960 kg a = 2.3 m/s^2 F = ma = 960 x 2.3 = 2208 N Thrust force = Fa + Fd Drag Force Fd = 4100 - 2208 = 1892 N
29 August, 03:19
For a motorboat:
F m = m · a = 960 kg · 2.1 m/s² = 2208 N
Propeller provides trust force F p = 4.1 kN = 4100 N
We have to find drag force exerted by the water on the boat.
F = 4100 N - 2208 N = 1892 N = 1.9 kN (with 2 significant figures)
Answer: 1.9 kN
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» A 960 kg motorboat accelerates away from a dock at 2.3 m/s2. t Its propeller provides a thrust force of 4.1 kN.