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Answers
Answer:
Speed Velocity
It is the rate of change of distance. It is a rate of change of displacement.
It cannot be negative. The velocity of moving Objects can be negative, positive or can be zero.
A body is said to have uniform velocity when the body is travelling equal distance in equal interval of time , in a particular direction
Position describes the location of an object.
Often you describe where something is by comparing its position with where you currently are. You might say, for example, that a classmate sitting next to you is about a meter to your right, or that a mailbox is two blocks south of where you live.
Q.15
initial velocity,u = 80km/h =
final velocity,v = 60km/h
time taken,t = 5s
acceleration= v - u / t
= 80-60/5
= 20 /5
= 4