A bullet of mass 20g has an initial speed of 1 m just before it starts penetrating a mud wall of thickness 20cm. If the wall offers a mean resistance of 2.5 N, the speed of the bullet after emerging from the other side of the wall is close to : |
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(a) |
0.4 m |
(b) |
0.7 m |

(c) |
0.3 m |
(d) |
0.1 m |

A bullet of mass 20g has an initial speed of 1 m just before it starts penetrating a mud wall of thickness 20cm. If the wall offers a mean resistance of 2.5 N, the speed of the bullet after emerging from the other side of the wall is close to : |
|||

(a) |
0.4 m |
(b) |
0.7 m |

(c) |
0.3 m |
(d) |
0.1 m |

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