Question

plz solve it..........✌✌✌✌✌​

Answer 1

Answer:

Average speed=(60/4+80/10)/2

=(15+8)/2

=23/2

=11.5 m/sec

THIS IS UR ANSWER

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Answer 2

Answer:

120m/s

Explanation:

for 1st case

d- 60 m t is 4 sec so

speed = distance ×time

60 ×4

240 m/s

2nd case speed =d ×t

8×10

80 m/s

average speed =total speed /total time

240+80/10+4

320/14

22.85m/s

hope it help u