Grade 11General Physics

Internal forces acting within a system of particles can alter the kinetic energy of the system but not the linear momentum of the system...???How?

Vaibhav

9 Years agoGrade 11

3 Answers

Diksha Chandna

Approved Tutor Answer9 Years ago

Kinetic energy doesn`t have to be conserved since, in any closed system with only conservative forces, mechanical energy is conserved.kinetic energy isn`t conserved (inelastic collisions for example), hence we do not know kinetic energy is conserved.Talking about momentum F external=dp/dt Or if External Force =0 then dp vector=0 or we can say that ∆p vector =0 which implies that initial momentum=final momentum....So if the net external force on a system of particles is zero then net momentum of the system will remain conserve..Approve it if I m right...

Vaibhav

9 Years ago

thnq diksha ;) ....but can you also answer some of my biology questions??? coz i took pcb....answer this question plzzzz...(chemistry) shape of sai251?

Diksha Chandna

9 Years ago

Sorry I can`t solve ur biology questions since I m not an biology student...I can solve ur pcm doubt..

In viewing through a magnifying glass, one usually positions one's eyes very close to the lens. Does angular magnification change if the eye is moved back?

general physics

1 Answer Available

Last Activity: 9 Months ago

moment of inertia of a equilateral triangle about an axis passing through centre and perppendicular to the plane

general physics

1 Answer Available

Last Activity: 3 Years ago

. Because of the rotation of the earth, a plumb bob may not hang exactly along the direction of
the earth’s gravitational pull (its weight) but deviates slightly from this direction. Calculate the
deviation (a) at 40 latitude, (b) at the poles, and (c) at the equator

general physics

1 Answer Available

Last Activity: 3 Years ago

The length of a massless rod is measured using vernier callipers having 10 vernier scale divisions and least count of 0.1 mm. Two masses 1.00 ± 0.01 kg and 4.00 ± 0.02 kg are attached to its ends. If reading of vernier scale is 5 divisions coinciding with 1.3 cm, what is the % error in locating centre of mass from lighter mass

general physics

2 Answers Available

Last Activity: 3 Years ago

A block is kept on x-y plane at a point (2m,3m). It is pushed with a force of magnitude 10 Ntowards point (5m,7m). The force can be represented as?

general physics

1 Answer Available

Last Activity: 3 Years ago

View all Questions

Internal forces acting within a system of particles can alter the kinetic energy of the system but not the linear momentum of the system...???How?

Vaibhav

3 Answers

Diksha Chandna

Vaibhav

Diksha Chandna

Other Related Questions on general physics

In viewing through a magnifying glass, one usually positions one's eyes very close to the lens. Does angular magnification change if the eye is moved back?

moment of inertia of a equilateral triangle about an axis passing through centre and perppendicular to the plane

. Because of the rotation of the earth, a plumb bob may not hang exactly along the direction ofthe earth’s gravitational pull (its weight) but deviates slightly from this direction. Calculate thedeviation (a) at 40 latitude, (b) at the poles, and (c) at the equator

A block is kept on x-y plane at a point (2m,3m). It is pushed with a force of magnitude 10 Ntowards point (5m,7m). The force can be represented as?

. Because of the rotation of the earth, a plumb bob may not hang exactly along the direction of
the earth’s gravitational pull (its weight) but deviates slightly from this direction. Calculate the
deviation (a) at 40 latitude, (b) at the poles, and (c) at the equator