Question

She has composed letter for me ( voice + complex )
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Answer 1

Answer:

why can't you follow me

Answer 2

Answer:

Let distance from A to B=x  km= distance from B to A.

Time taken by train from A to B =60x hr 

Time taken by train  from B to A =80x hr

Total time taken by train =60x+80x=2407x hr

average speed=total timetotal distance=2407x2x=7480 km h−1

If a train travels at a constant velocity of 60 km per hour for 5 hours continuously, then the acceleration achieved by this train is ______ .*

1️⃣ positive

2️⃣ negative

3️⃣ zero

4️⃣ positive and negativeIn his Systema Naturae, first published in 1735, Carolus Linnaeus distinguished two kingdoms of living things: Animalia for animals and Plantae (Vegetabilia) for plants. He classified all living organisms into two kingdoms – on the basis of nutrition and locomotion (mobility).what revolution was brought about by homo sapisns in the tool-making technique