Isaac (whose mass is 70 kg) is taking a nap in the front of his 100-kg boat, which is floating at rest in a lake. After waking up, he's thirsty and heads toward the cooler in the back of his boat. (1) If he walks with a speed of 2 m/s (relative to the ground), what is the boat's velocity (relative to the ground) while he's walking? (2) What is the boats' velocity (relative to the ground) if he walks with a 2 m/s speed relative to the boat?

Classical Dynamics of Particles and Systems
5th Edition
ISBN:9780534408961
Author:Stephen T. Thornton, Jerry B. Marion
Publisher:Stephen T. Thornton, Jerry B. Marion
Chapter9: Dynamics Of A System Of Particles
Section: Chapter Questions
Problem 9.60P
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Isaac (whose mass is 70 kg) is taking a nap in the front of his 100-kg boat, which is floating at rest in a
lake. After waking up, he's thirsty and heads toward the cooler in the back of his boat.
(1) If he walks with a speed of 2 m/s (relative to the ground), what is the boat's velocity (relative to the
ground) while he's walking?
(2) What is the boats' velocity (relative to the ground) if he walks with a 2 m/s speed relative to the
boat?
Transcribed Image Text:Isaac (whose mass is 70 kg) is taking a nap in the front of his 100-kg boat, which is floating at rest in a lake. After waking up, he's thirsty and heads toward the cooler in the back of his boat. (1) If he walks with a speed of 2 m/s (relative to the ground), what is the boat's velocity (relative to the ground) while he's walking? (2) What is the boats' velocity (relative to the ground) if he walks with a 2 m/s speed relative to the boat?
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