Question

A body covers on one revolution around a circular part of circumference 176 m in 4 minutes. Find the displacement of the body after 6 minutes?

Answer 1

Speed of the body =       176/4  = 44 m/min

Therefore the distance covered in 6 min is

44*6 =     264 m

Answer 2

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)