Question

A 100 kg boat is moving against the current of a river at a constant speed of 18m/s North (+j). Several sailors are using a rope to pull the boat from the shore so that a constant force of Fpull=450N at an angle of 25° relative the direction of travel as shown in the picture. A steady wind is also pushing the boat and applies a constant force of Fwind=60N due west (-i). Neglect the frictional forces and any air resistance for this problem. A) What is the force applied to the boat by river current Friver? Give your answer in either component form or as a magnitude and an angle. B) If the sailors pull the boat for a distance of 1.2km, how much work do they do to pull the boat for this distance?

          A 100 kg boat is moving against the current of a river at a constant speed of 18m/s North (+j). Several sailors are using a rope to pull the boat from the shore so that a constant force of Fpull=450N at an angle of 25° relative the direction of travel as shown in the picture. A steady wind is also pushing the boat and applies a constant force of Fwind=60N due west (-i). Neglect the frictional forces and any air resistance for this problem.

A) What is the force applied to the boat by river current Friver? Give your answer in either component form or as a magnitude and an angle.
B) If the sailors pull the boat for a distance of 1.2km, how much work do they do to pull the boat for this distance?

A 100 kg boat is moving against the current of a river at a constant speed of 18m/s North (+j). Several sailors are using a rope to pull the boat from the shore so that a constant force of Fpull=450N at an angle of 25° relative the direction of travel as shown in the picture. A steady wind is also pushing the boat and applies a constant force of Fwind=60N due west (-i). Neglect the frictional forces and any air resistance for this problem.

A) What is the force applied to the boat by river current Friver? Give your answer in either component form or as a magnitude and an angle.
B) If the sailors pull the boat for a distance of 1.2km, how much work do they do to pull the boat for this distance?

Added by Amy A.

Question

Please give Ace some feedback