Ricardo, mass 82 kg, and Carmelita, who is lighter, are enjoying Lake Merced at dusk in a 30 kg...

Question:

Ricardo, mass 82 kg, and Carmelita, who is lighter, are enjoying Lake Merced at dusk in a 30 kg canoe. When the canoe is at rest in the placid water, they exchange seats, which are 3.8 m apart and symmetrically located with respect to the center of the canoe. Ricardo notices that the canoe moved 40.4 cm relative to a submerged log during the exchange and calculates Carmelita's mass, which she has not told him. What is it?

Center of Mass and Newton's Laws of Motion :

For a system of particles, which is not acted upon by a net external force, Newton's first law states that the center of mass of the system will not change its state of rest or motion. If center of mass of the system is at rest, it remains at rest in the absence of external force, though internal forces may be present.

Answer and Explanation: 1

Become a Study.com member to unlock this answer!

View this answer

Given Data:

  • mass of Ricardo {eq}m_1 \ = 82 \ kg{/eq}
  • mass of Carmelita as {eq}m_2{/eq} (to be found)
  • mass of canoe {eq}M \ = 30 \ kg {/eq}
  • distance...

See full answer below.


Learn more about this topic:

Loading...
Center of Mass | Definition, Equation & Calculation

from

Chapter 1 / Lesson 10
20K

Learn the definition of and formula for an object's center of mass. Understand the method used to calculate the position of a center of mass.


Related to this Question

Explore our homework questions and answers library