Ask Questions, Get Answers
Menu
X
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
CBSE XII Board Exam Series
BES Math
BES Physics
BES Chemistry
BES Biology
studyplans
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
CBSE XII
Math
JEEMAIN
Math
Physics
Chemistry
Practice Test Series
CBSE XI
Math
NEET
Physics
Chemistry
Biology - XII
Biology - XI
Olympiad class V
Math - 5 Test Series
Olympiad class VI
Math - 5 Test Series
CBSE XII Board Exam Series
BES Math
BES Physics
BES Chemistry
BES Biology
mobile
exams
ask
sample papers
tutors
pricing
login
X
ASK
Home
>>
EAMCET
>>
Physics
Two bodies of 6 kg and 4 kg masses have their velocity $5 \hat i+ 2 \hat j +10 \hat k$ and $10 \hat i - 2 \hat j -8 \hat k$ respectively. Then the velocity of their center of mass is
\[\begin {array} {1 1} (a)\;5 \hat i+ 2 \hat j-8 \hat k & \quad (b)\;7 \hat i+ 2 \hat j-8 \hat k \\ (c)\;7 \hat i - 2 \hat j + 8 \hat k & \quad (d)\;5 \hat i - 2 \hat j +8 \hat k \end {array}\]
jeemain
eamcet
physics
2007
q6
Share
asked
Oct 22, 2013
by
meena.p
Please
log in
or
register
to add a comment.
Please
log in
or
register
to answer this question.
1 Answer
$(c)\;7 \hat i - 2 \hat j + 8 \hat k$
answered
Nov 7, 2013
by
pady_1
Please
log in
or
register
to add a comment.
Related questions
Two particles of equal mass have velocities $\overrightarrow {v_1}=4 \hat i$ and $\overrightarrow{v_2} =4 \hat j ms^{-1}$. First particle has an acceleration $\overrightarrow{a_1}=(5 \hat i+5 \hat j)ms^{-2}$ while the accleration of the other particle is zero. The center of mass of the two particles moves in a path of :
jeemain
eamcet
physics
2004
q6
asked
Nov 13, 2013
by
meena.p
1
answer
Two particles of masses 1 kg and 3 kg have velocities $(2 \hat i-3 \hat j+4 \hat k)ms^{-1}$ and $(4 \hat {i}+2 \hat j+\hat k)ms^{-1}$ at a given instant of time. The velocity of the center of mass is
jeemain
physics
class11
unit5a
center-of-mass-and-collisions
easy
asked
Nov 21, 2013
by
meena.p
1
answer
Three particles of masses 8 kg, 4 kg and 4 kg situated at $(4,1),(-2,2)$ and $(1,-3)m$ are acted upon by external forces $6 \hat {j},-6 \hat {i}$ and $14 \hat {i}\;N$ respectively . The acceleration of the center of Mass of the system is
jeemain
physics
class11
unit5a
center-of-mass-and-collisions
easy
asked
Nov 21, 2013
by
meena.p
1
answer
Two bodies of mass 4 kg and 5 kg are moving along east and north directions with velocities 5 m/s and 3 m/s respectively. Magnitude of the velocity of center of mass of the system is
jeemain
eamcet
physics
2013
q86
asked
Sep 17, 2013
by
meena.p
1
answer
The center of mass of three particles of masses 1 kg,2 kg and 3 kg is at (2,2,2). The position of the fourth mass of 4 kg to be placed in the system as that the new center of mass is at (0,0,0) is :
jeemain
eamcet
physics
2005
q6
asked
Nov 7, 2013
by
meena.p
2
answers
At a given instant of time two particles are having the position vectors $4 \hat i+4 \hat j+57 \hat k$ metres and $2 \hat i+2 \hat j+5 \hat k$ respectively. If the velocity of the first particle be $0.4 \hat i ms^{-1},$ the velocity of second particle in meter per second if they collide after 10 sec is :
jeemain
eamcet
physics
2004
q2
asked
Nov 13, 2013
by
meena.p
1
answer
Two particles of mass 1 kg and 3 kg have position vectors $ 2 \overrightarrow i + 3\overrightarrow j+4\overrightarrow k \: and \: -2\overrightarrow i+3\overrightarrow j-4\overrightarrow k$ respectively. The position vector of centre of mass of the system is
jeemain
eamcet
physics
2012
q90
asked
Oct 19, 2013
by
thanvigandhi_1
1
answer
Ask Question
Tag:
Math
Phy
Chem
Bio
Other
SUBMIT QUESTION
►
Please Wait
Take Test
JEEMAIN Crash Practice
15 Test Series
NEET Crash Practice
15 Test Series
JEEMAIN
350+ TESTS
NEET
320+ TESTS
CBSE XI MATH
50+ TESTS
CBSE XII MATH
80+ TESTS
...