Question

A bullet moving with 10m/s and brought to rest penetrating the wood plank of 4 cm thick calculate retardation?​

Answer 1

Answer:

v

2

−u

2

=2as

0−(200)

2

=2a×4

⇒a=5000cm/s

2

Now initial velocity to travel 6 cm,

0−u

2

=−2×5000×6

⇒u=244.9cm/s

Explanation:

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Answer 2

Explanation:

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