(a) loss of potential energy
(b) gain in potential energy
(c) loss in kinetic energy
(d) gain in kinetic energy
Doubt by Jaskirat
Solution :
As we know that friction is a force that acts between two surfaces in contact, and it always opposes the relative motion between them. This means that when a body is moving against friction then its velocity will decreases and as a result its kinetic energy will also decreases so there must be some loss in kinetic energy.
As we know that friction is a force that acts between two surfaces in contact, and it always opposes the relative motion between them. This means that when a body is moving against friction then its velocity will decreases and as a result its kinetic energy will also decreases so there must be some loss in kinetic energy.
Hence, (c) loss in kinetic energy, would be the correct option.