🏷️ LIMITED TIME OFFER: GET 20% OFF GRADE+ YEARLY SUBSCRIPTION →
Log in
Physics
2
answers
0
watching
130
views
3 Dec 2020

Two persons of masses 55kg and 65kg respectively are at the opposite ends of a boat. The length of the boat is 3m and weighs 100kg. The 55kg man walks up to the 65kg man and sits with him. If the boat is in still water the center of mass of the system shifts by__

Booster class
Mechanics 1
Skill
Understanding the concept of rotational motion
Watch
2
answers
0
watching
130
views

For unlimited access to Homework Help, a Homework+ subscription is required.

Unlock all answers

Get 1 free homework help answer.
Already have an account? Log in
Share
Uttam Saikia
Uttam SaikiaLv10
3 Dec 2020
Already have an account? Log in
Share

Related textbook solutions

Physics: Principles with Applications
7th Edition, 2013
Giancoli
ISBN: 9780321625922

Related questions

A 56-kg canoeist sits at rest at the back end of a 23-kg canoe. Thecanoe is at rest in the still water of a lake with its front endabout 0.50 m from the dock. The canoeist realizes that she has leftthe paddle on the dock, so she carefully works her way to the frontof 3.8-m canoe. Is she likely to be able to reach the dock from thefront of the boat?

(Hint: We can treat the system of the canoe and canoeist as if itwere isolated.)

Use the worked example above to help you solve this problem. Awoman of mass m = 51.0 kg sits on the left end of a seesaw—a plankof length L = 3.94 m—pivoted in the middle as shown in thefigure.

(a) First compute the torques on the seesaw about an axis thatpasses through the pivot point. Where should a man of mass M = 67.6kg sit if the system (seesaw plus man and woman) is to bebalanced?
2. m

(b) Find the normal force exerted by the pivot if the plank has amass of mpl = 10.0 kg.
3. N

(c) Repeat part (a), but this time compute the torques about anaxis through the left end of the plank.
4. m

----EXERCISE HINTS: GETTING STARTED!!!! (NEED ANSWERS :) :))
Suppose a 34.2 kg child sits 1.10 m to the left of center on thesame seesaw as the problem you just solved. A second child sits atthe end on the opposite side, and the system is balanced.

(a) Find the mass of the second child.
mass child 2 = kg

(b) Find the normal force acting at the pivot point.
Fn = N

Use the worked example above to help you solve this problem. Awoman of mass m = 51.0 kg sits on the left end of a seesaw—a plankof length L = 3.94 m—pivoted in the middle as shown in thefigure.

(a) First compute the torques on the seesaw about an axis thatpasses through the pivot point. Where should a man of mass M = 67.6kg sit if the system (seesaw plus man and woman) is to bebalanced?
2. m

(b) Find the normal force exerted by the pivot if the plank has amass of mpl = 10.0 kg.
3. N

(c) Repeat part (a), but this time compute the torques about anaxis through the left end of the plank.
4. m

----EXERCISE HINTS: GETTING STARTED!!!! (NEED ANSWERS :) :))
Suppose a 34.2 kg child sits 1.10 m to the left of center on thesame seesaw as the problem you just solved. A second child sits atthe end on the opposite side, and the system is balanced.

(a) Find the mass of the second child.
mass child 2 = kg

(b) Find the normal force acting at the pivot point.
Fn = N

Weekly leaderboard

Home
Homework Help 3,900,000
Physics 110,000
Start filling in the gaps now
Log in