Question

1 is a long distance race, the athletes were expected to take four rounds of the track such that
the line of finish was same as the line of start. Suppose the length of the track was 200m
(a)What is the total distance to be covered by the atheletes?
(b)What is the displacement of the atheletes when the touch the finish line?
Cis the motion of the athelete uniform of non-uniform?
dis the displacement of an athelete and the distance moved by him at the end of the race equal​

Answer 1

Answer:

Explanation:

when finish line is same as that of initial line , it means length of one round =

2 × Length of track = 2 × 200 = 400 m

(a) total distance covered by athletics =

4 × Length of one round

= 4 × 400 = 1600 m = 1.6 Km = 1 mile

(b) displacement covered by athletics = final position - inital position =0

{ we know, accroding to question one round equal final position is same as initial position so, displacement in one round = 0 hence, displacement in 4 rounds = 0}

(C) we probably say that motion of athletic is non - uniform motion

becoz in question , never include about athletic speed , { e.g constant or not }

but practically athletic moves non - uniform motion , becoz sometime he accelerates own motion , sometimes do slow .

(d) never !!!

because , displacement = 0

but distance = 1600m = 1.6 km

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Answer 2

Answer:

Explanation: