Question

37. A bullet moving with 10 m/s hits the wooden plank. The bullet is stopped when it penetrates the plank 2 cm deep. Calculate the retardation of the bullet.​

Answer 1

$\huge{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}$

This is the Negative Acceleration (or Retardation) of Bullet. Here, Negative sign just indicates the fact that Velocity of the bullet is decreasing as it penetrates into the wooden block and finally becomes zero, when it penetrates 2cm inside the wooden block

Answer 2

Answer:

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