the displacement of a body can be positive, negative or sometimes zero. Explain it with the help of the examples
Answers
Answer:
displacement is the shortest distance between initial position and final position. if both are same, then least distance would be zero. for example- if you travel from your home to school and back to home, distance would be twice the distance between your home and school
POSITIVE
The work done on an object is said to be positive work when force and displacement are in same direction.
EX•When an object moves on horizontal surface,force and displacement acts in forward direction. So,work done is positive.
NEGATIVE
The work done is said to be negative work when force and displacement are in opposite direction.
EX• When an object is thrown upwards,the force CTS in downward direction whereas displacement acts in upward direction.
ZERO
The work done is said to be zero work when force and displacement are perpendicular to each other or when either force or displacement is zero.
EX•When we hold an object and walk,the force acts in downward direction whereas displacement acts in forward direction.