A bullet hits a block kept at rest on a smooth horizontal surface and gets embedded into it

Question

A bullet hits a block kept at rest on a smooth horizontal surface and gets embedded into it

A bullet hits a block kept at rest on a smooth horizontal surface and gets embedded into it. Which of the following does not change ?
(a) linear momentum of the block
(b) kinetic energy of the block
(c) gravitational potential energy of the block
(d) temperature of the block.

Monjur Alahi

5 views

2025-01-04 04:42

1 Answers

Related Questions

Water kept in sunlight gets heat from sun and is evaporated. But how does water kept under the shade of a tree also gets evaporated? Explain.

1 Answers 8 Views

A block of mass √2kg is released from the top of an inclined smooth surface.If the spring constant is 100N/m

1 Answers 4 Views

A block of mass √2kg is released from the top of an inclined smooth surface.If the spring constant is 100N/m

1 Answers 4 Views

A block of mass m slides down a smooth vertical circular track. During the motion, the block is in

1 Answers 8 Views

A uniform sphere is placed on a smooth horizontal surface and a horizontal force F is applied on it

1 Answers 5 Views

One end of a uniform rod of mass m and length l is clamped. The rod lies on a smooth horizontal surface and rotates

1 Answers 4 Views

A uniform rod is kept vertically on a horizontal smooth surface at a point 0. If it is rotated slightly and released,

1 Answers 4 Views

One end of a light spring of spring constant k is fixed to a wall and the other end is tied to a block placed on a smooth horizontal surface.

1 Answers 9 Views

A bullet hits a block kept at rest on a smooth horizontal surface and gets embedded into it.

1 Answers 4 Views

A uniform rod is kept vertically on a horizontal smooth surface at a point O.

1 Answers 5 Views

Salim Ahmed Kawsar · Accepted Answer · 2023-02-05T15:29:48+06:00

(c) gravitational potential energy of the block

Explanation:

In this case velocity of the block will change, hence (a) and (b) will change. Some part of the K.E. of the bullet will be converted into heat energy due to friction between bullet and the block during the embedment. Hence (d) will also change. Since height of the block does not change hence (c) will not change.