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ArbitrLikvidat [17]
4 years ago
6

A train moves from rest to a speed of 40 m/s in 20.0 seconds. What is its acceleration?

Mathematics
1 answer:
alina1380 [7]4 years ago
5 0

Answer: 25m/s

Explanation:

S1=(2u+v)t   \\ =20×20=400m \\ S2=40×20=800m \\ S3=(2u+v)t \\ =20×40=800m \\ Total \:  displacement =2000 m \\ Total  \: time \:  taken =80 m \\ V=802000=25m/s

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