Give reasons:
(1) Distance and displacement are different concepts.
(2) An object at rest can be considered to have uniform motion.
(3) When a body falls freely to the ground, its motion has an uniform acceleration.
Give reasons:
(1) Distance and displacement are different concepts.
(2) An object at rest can be considered to have uniform motion.
(3) When a body falls freely to the ground, its motion has an uniform acceleration.
(1) Distance: It is the length of the path travelled by a body whilst moving from an initial position to a final position. It is always positive.
Displacement: It is the shortest distance between the initial and final positions of the body. It can be zero, positive or negative.
(2) We know that rest and motion are relative terms. So, an object at rest can be considered to have a uniform motion. For example, a bus is moving on the road with constant velocity. Now, the bus is at rest with respect to its passengers but, has uniform motion with respect to the bus stand.
(3) When a body falls freely to the ground, its motion has a uniform acceleration i.e., acceleration due to gravity because only gravitational force acts on it.
(1) Distance: It is the length of the path travelled by a body whilst moving from an initial position to a final position. It is always positive.
Displacement: It is the shortest distance between the initial and final positions of the body. It can be zero, positive or negative.
(2) We know that rest and motion are relative terms. So, an object at rest can be considered to have a uniform motion. For example, a bus is moving on the road with constant velocity. Now, the bus is at rest with respect to its passengers but, has uniform motion with respect to the bus stand.
(3) When a body falls freely to the ground, its motion has a uniform acceleration i.e., acceleration due to gravity because only gravitational force acts on it.
