please fast class 11
Attachments:
Answers
Answered by
1
Answer:
velocity is a rate of change of a displacement of a body in unit time it is know as velocity
S. I unit m/ s
Answered by
1
Answer:
step by step ans
Explanation:
(a) Velocity of a body is the distance traveled by it per unit time in a given direction. SI unit of velocity is m/s.
(b)
(i) Speed is a scalar quantity whereas velocity is a vector quantity.
(ii) Speed of a body is distance traveled by it per unit time whereas velocity of a body is the distance traveled by it per unit time in a given direction.
(iii) Speed is always positive whereas velocity can be both positive as well as negative.
(c) Speed =54km/h
=54×
3600
1000
=15 m/s
Similar questions