1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
erastova [34]
3 years ago
8

Ricardo, of mass 80 kg, and Carmelita, who is lighter, are enjoying Lake Merced at dusk in a 30 kg canoe. When the canoe is at r

est in the placid water, they exchange seats, which are 3.0 m apart and symmetrically located with respect to the canoe's center. If the canoe moves 40 cm horizontally relative to a pier post, what is Carmelita's mass?
Physics
1 answer:
Deffense [45]3 years ago
4 0

Answer:

m=57.65 kg

Explanation:

Given Data

Ricardo mass m₁=80 kg

Canoe mass m₂=30 kg

Canoe Length L= 3 m

Canoe moves x=40 cm

When Canoe was at rest the net total torque is zero.

Let the center of mass is at x distance from the canoe center and it will be towards the Ricardo cause. So the toque around the center of mass is given as

m_{1}(L/2-x)=m_{2}x+m_{2}(L/2-x)

We have to find m₂.To find the value of m₂ first we need figure out the value of.As they changed their positions the center of mass moved to other side by distance 2x.

so

2x=40

x=40/2

x=20 cm

Substitute in the above equation we get

m_{x}=\frac{m_{1}(L/2-x)-m_{2}x }{L/2+x}\\m_{x}=\frac{80(\frac{3}{2}-0.2 )-30*0.2}{3/2+0.2}\\m_{x}=57.65 kg

You might be interested in
Atoms with the same number of protons but with different electrical charges _____.
mash [69]

Answer:

Atoms with the same number of protons but with different electrical charges are different ions

Explanation:

Ions are defined as those atoms or molecules which carry charge

5 0
3 years ago
Read 2 more answers
consider the mirror from the last question. an object 4cm tall stands 10cm in front of a converging mirror of focal length 5cm.
aleksandr82 [10.1K]
<span>An Object 4 Cm Tall Is Placed 12 Cm From A Divergi... | Chegg.com</span>
6 0
3 years ago
Read 2 more answers
Which action would be most likely to reduce the noise level of people talking in a restaurant?
vazorg [7]
B.adding carpet and fabric wall covering to absorb sound
7 0
2 years ago
Read 2 more answers
A fast moving super hero in a comic book runs around
____ [38]
That would be The Flash. 
7 0
3 years ago
Read 2 more answers
Newton’s third law of motion says that for every action there is a(n) and opposite reaction.
sattari [20]

Answer:

for every action thete is an equal and opposite reaction

3 0
3 years ago
Other questions:
  • Match each word to its definition. (Picture should be included)
    6·1 answer
  • suppose that a large cargo truck needs to cross a bridge. the truck is 30 m long and 3.2 m wide. the cargo exerts a force nof 54
    5·1 answer
  • What happens to these physical properties as the strength of intermolecular forces increases?
    10·1 answer
  • A 0.311 kg tennis racket moving 30.3 m/s east makes an elastic collision with a 0.0570 kg ball moving 19.2 m/s west. Find the ve
    14·1 answer
  • A metal sphere is neutral because it has an equal number of protons and electrons. Draw how the charges in the sphere are redist
    8·2 answers
  • Will get Brainlest 5 star and heart looking for someone who knows 7 grd science flvs work dm and friend
    5·1 answer
  • If the balloon can barely lift an additional 3500 N of passengers, breakfast, and champagne when the outside air density is 1.23
    14·1 answer
  • Due in a few minutes plzzzz help! Will mark brainliest
    5·1 answer
  • Three dogs (Spot, Fido, and Steinberg) are pulling on a chew toy. The chew toy is experiencing no acceleration. Spot is pulling
    8·1 answer
  • A clarinetist, setting out for a performance, grabs his 3.070 kg clarinet case (including the clarinet) from the top of the pian
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!