3 q are doubt EVIOUS YEARS' QUESTIONS
rYrticles move towards each other
2v and v respectively. The velocity of
care of mass is-
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(4) zero
-tre A prfrg of force constant 800 N/m has an
and' of 5 Cm. The work done in extending it
5 cm to 15 cm iS-
(1) 16J
4 B) 32 J
IAIEEE • 20021
(4) 24 J
J A spring Of spring constant 5 x 103 N/m is
*retchd initially 5 an from the unstretched
p«tim. Then the wrk required to stretch it
ftmher another 5 cm B-
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(1) 12.50 N-m
(2) 18.75 N.m
(3) 25.00
• (4) 6.25 N-m
A EYxiy is moved alono a straiaht line by a machine
9.
Work, p
A bcdy A
The centre
t*ther shitt
(2) does mt
(3) bcoc
(4) body B
The bicck
constant k
kL2
