A boat is traveling upstream in the positive direction of the x axis at 12 km/h

Question

A boat is traveling upstream in the positive direction of thex axis at 12 km/h with respect tothe water of a river. The water is flowing at 5 km/h with respect to the ground. (a) What is the velocity of the boat withrespect to the ground?
km/h

(b) A child on the boat walks from front to rear at 8 km/h with respect to the boat. What is the child'svelocity with respect to the ground?
km/h
(a) What is the velocity of the boat withrespect to the ground?
km/h

(b) A child on the boat walks from front to rear at 8 km/h with respect to the boat. What is the child'svelocity with respect to the ground?
km/h

Explanation / Answer

. 01.   Upstream means the boat is traveling againstthe direction of the water flow. . 02. Velocity of boat wrt ground = (12 km/h) - (5 km/h) =7 km/h 03.   Child's velocity wrt ground = (7 km/h) - (8km/h) = -1km/h   ;   the child is movingupstream (-x direction) at 1 km/h .

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

---

---

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