A boy is trying to cross a river 200m wide. He travels at 3m/s [N} relative to the water, but the water current has a velocity of 1m/s[E30S]. 1) Find the boys velocity relative to the ground 2) The time it takes to cross the river 3) The direction he should orient himself so he would land exactly north of his starting point

College Physics
11th Edition
ISBN:9781305952300
Author:Raymond A. Serway, Chris Vuille
Publisher:Raymond A. Serway, Chris Vuille
Chapter1: Units, Trigonometry. And Vectors
Section: Chapter Questions
Problem 1CQ: Estimate the order of magnitude of the length, in meters, of each of the following; (a) a mouse, (b)...
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Just the relative motion question
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Relative Motion
A boy is trying to cross a river 200m wide. He travels at 3m/s [N} relative to the
water, but the water current has a velocity of 1m/s[E3OS).
1) Find the boys velocity relative to the ground
2) The time it takes to cross the river
3) The direction he should orient himself so he would land exactly north of his
starting point
4) How long would it take to cross river in #3?
5) Discuss why the times are different and why one is longer than the other
Gr.11 Review Projectile Questions
A soccer ball is kicked with an initial velocity of 10m/s and 30 degrees above the
horizontal, Find the total time the projectile is in the air AND the range of the
projectile for the following cases:
1) The soccer ball is kicked at ground level and returns to ground level
2) The soccer ball is kicked while standing on a hill 5m tall and hits the ground
Transcribed Image Text:E Google Docs B Discussions List -SPH Bev-Find Work A HRE 4M1 03 A todsb.elearniìngontario.ca/d2/le/19965763/discussions/List Relative Motion A boy is trying to cross a river 200m wide. He travels at 3m/s [N} relative to the water, but the water current has a velocity of 1m/s[E3OS). 1) Find the boys velocity relative to the ground 2) The time it takes to cross the river 3) The direction he should orient himself so he would land exactly north of his starting point 4) How long would it take to cross river in #3? 5) Discuss why the times are different and why one is longer than the other Gr.11 Review Projectile Questions A soccer ball is kicked with an initial velocity of 10m/s and 30 degrees above the horizontal, Find the total time the projectile is in the air AND the range of the projectile for the following cases: 1) The soccer ball is kicked at ground level and returns to ground level 2) The soccer ball is kicked while standing on a hill 5m tall and hits the ground
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