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salini
 3 years ago
Boy and girl sailing on a boat(the boat mass is:25 kg), the boy mass is: 95kg and mass of the girl is smaller from boy
When the boat was at rest in quiet water the boy ang girl exchanged their place.
Both were symmetrically about the center of the boat and the distance between them was 3.0 m
After they switched place the guy saw thet boat moved at 40cm relation to log which was beside of the boat,
What is a girl's mass?
salini
 3 years ago
Boy and girl sailing on a boat(the boat mass is:25 kg), the boy mass is: 95kg and mass of the girl is smaller from boy When the boat was at rest in quiet water the boy ang girl exchanged their place. Both were symmetrically about the center of the boat and the distance between them was 3.0 m After they switched place the guy saw thet boat moved at 40cm relation to log which was beside of the boat, What is a girl's mass?

This Question is Closed

hosein
 3 years ago
Best ResponseYou've already chosen the best response.0Hi you can solve this by relation of displacement center of mass

chand
 3 years ago
Best ResponseYou've already chosen the best response.0sum of moments of masses about the centre of mass is equal to zero. you can use this concept

salini
 3 years ago
Best ResponseYou've already chosen the best response.1i am not able to understand that 40cm displacement part does the entire boat get displaced in the horizontal direction by 40cm they interchanging the places changes the com but how does the 40cm move inthe horizontal plane account for it?

salini
 3 years ago
Best ResponseYou've already chosen the best response.1how can we relate the two?

Taufique
 3 years ago
Best ResponseYou've already chosen the best response.1dw:1333300411963:dw dw:1333300529345:dw Let the mass of the girl be M;here no external force is present,hence the centre of mass of the system be conserve: (C.O.Mass)initial=(C.O.Mass)final 95*(1.5)+25*0+M*(1.5)=95*(0.41.5)+25*0.4+M(0.4+1.5) find the M which give you the mass of the girl...

salini
 3 years ago
Best ResponseYou've already chosen the best response.1that is nice the coordinates of my chosen origin change but not the com thank u all for ur responses
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