A motorboat and its load weigh 980 kg. Assume that the propeller force is constant and equal to 24 kg, and the water resistance is equal numerically to 1.5v kg where v is the speed at any instant in m/sec. If the boat starts from rest, then what is the speed of the motorboat at the end of 20 seconds? 2.23 m/s 4.15 m/s 4.46 m/s 3.55 m/s
A motorboat and its load weigh 980 kg. Assume that the propeller force is constant and equal to 24 kg, and the water resistance is equal numerically to 1.5v kg where v is the speed at any instant in m/sec. If the boat starts from rest, then what is the speed of the motorboat at the end of 20 seconds? 2.23 m/s 4.15 m/s 4.46 m/s 3.55 m/s
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Transcribed Image Text:A motorboat and its load weigh 980 kg. Assume that the propeller force is
constant and equal to 24 kg, and the water resistance is equal numerically to
1.5v kg where v is the speed at any instant in m/sec. If the boat starts from rest,
then what is the speed of the motorboat at the end of 20 seconds?
2.23 m/s
4.15 m/s
4.46 m/s
3.55 m/s
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