A body covers one revolution around a circular park of circumference 176m in 4 minutes. Find the displacement of the body after 6 minutes.
Answers
Answer:
Total distance around the track is 176m.
Speed of the body = total distance covered/total time taken
= 176/4
=44metres/min
Find the distance covered in 6 minutes:
if 1 min= 44m
then 6 min=(44X6)/1 =264
There the distance covered around the track from starting point = 264-176
=88 metres
This corresponds to distance around half the track, which means displacement corresponds to 180 degrees
Hence, the displacement distance is the diameter.
total distance around the track= 176m
Circumference=Xdiameter.....176=22/7 XD
D=176X7/22
=56 (therefore the displacement is 56meters)