A bullet of mass 20 g has an initial speed of 1 ms-1, just before it starts penetrating a mud wall of thickness 20 cm. If the wall offers a mean resistance of 2.5 × 10-2 N, the speed of the bullet after emerging from the other side of the wall is closer to:

A bullet of mass 20 g has an initial speed of 1 ms-1, just before it s

1.	A bullet of mass 20 g has an initial speed of 1 ms-1, just before it starts penetrating a mud wall of thickness 20 cm. If the wall offers a mean resistance of 2.5 × 10-2 N, the speed of the bullet after emerging from the other side of the wall is closer to:
A.	0.1 ms-1
B.	0.7 ms-1
C.	0.3 ms-1
D.	0.4 ms-1
Answer» C. 0.3 ms-1

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A bullet of mass 20 g has an initial speed of 1 ms-1, just before it starts penetrating a mud wall of thickness 20 cm. If the wall offers a mean resistance of 2.5 × 10-2 N, the speed of the bullet after emerging from the other side of the wall is closer to:

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