solve Q 6 plz dont give link 14
(D) None of these
5.
Seven identical birds are flying south together at constant velocity. A hunter shoots one of them,
which immediately dies and falls to the ground. The other six continue flying south at the original
velocity. After the one bird has hit the ground, the centre of mass of all seven birds
(A) continues south at the original speed, but is now located some distance behind the flying birds
(B) continues south, but at 6/7 the original velocity
(C) continues south, but at 1/7 the original velocity
(D) stops with the dead bird
A man weighing 80 kg is standing at the centre of a flat boat and he is 20 m from the shore. He walks
8 m on the boat towards the shore and then halts. The boat weight 200 kg. How far is he from the
shore at the end of this time ?
(A) 11.2 m
(B) 13.8 m
uerf4.3 m
(D) 15.4 m
There are some passengers inside a stationary railway compartment. The track is frictionless. The
centre of mass of the compartment itself (without the passengers) is C I , while the centre ofmass ofthe
'compartment plus passengers' system is C? If the passengers move about inside the compartment
along the track.
(A) both Cl and C2 will move with respect to the ground.
(B) neither CI norC2 will move with respect tothe ground.
will move but C2 will be stationary with respect tothe ground. buy C tvil) tho
(D) q will move but c, will be stationary with ground. tn attvpwk
05 t'
* A non—zero external force acts on a system of panicles. The velocity and accelerat on ofthe centre of
mass are found to be v and ac respectively at any instant t. It is possible that
