If an athelete runs on a circular track of diameter of 200 m in 50 sec. Find the average speed and displacement after 2 mins.
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Answer:
Step-by-step explanation:
Circumference of a circle is given by 2pr,
= [2*3.14*100 m] (As p = 3.14 )
= 628 metres.
Runs in 50sec
Then speed will be
628/50=12.506
.
.
.
.
2min =120 sec
He is doing 1round in 50sec
So total rounds
=120/50
=2.4 rounds
0.4 round will be displacement
which is equal to
0.4×628=251.2
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