2 A woman walks due west on the deck of a ship at 3 mph. The ship is moving nort

Question

2 A woman walks due west on the deck of a ship at 3 mph. The ship is moving north at a speed of 22 mph Find the speed of the woman relative to the surface of the water. 3 .A wagon is pulled a distance of 100meters along a horizontal path by a constant force of 50N The handle of the wagon is held at an angle of 30 degree above the horizontal. how much work is done? 4. A 100-meter dash is run on a track in the direction of the vector v vector = 4 I vector+ 3 j vector. The wind velocity w vector is 6ivector + 4j vector km/hr. The rules say that a legal wind speed measured in the direction of the dash must not exceed 5 km/hr. Will the race results be disqualified due to an illegal wind? [Hint: think projections...]

Explanation / Answer

2. 22 MPH - 3 MPH = 19 MPH ! RELATIVE VELOCITY

3. W = F COS THETA * S = 50 * COS 30 * 100 =5000*(SQRT 3) / 2 = 2500 * SQRT 3 Nm

Related Questions

Navigate

• Browse (All)
• Browse 2
• Subjects

---

---

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.