Question

a bullet of mass 10g is shot from a gun of mass 2kg such that guns recoils with velocity two meter per second the strikes a stationary block of mass 490 gram placed on a rough horizontal surface and gets embidded in it if frictional force provided by the surface on block is 2n the distance travelled by block coming to rest is​

Answer 1

Step-by-step explanation:

Conservation of linear momentum gives,

m

1

v

1

+m

2

v

2

=0

m

1

v

1

=−m

2

v

2

v

1

=

m

1

−m

2

v

2

Given, m

1

=10g=(

1000

10

)kg,

m

2

=1 kg,

v

2

=−5m/s

∴v

1

=

10/1000

+1×5

or v

1

=500m/s.

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