Physics, asked by 9684, 9 months ago

Please answer fast......

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Answered by rahil86
1

Explanation:

here is your answer

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Answered by nazza141262
0

Answer:20m/s

Explanation:average speed=total distance travelled

                                               total time taken

                                     =10+20+30

                                                3

                                       =6

                                          3

                                      =20m/s

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