Atrain approaching a crossing changes speed from 25 m/s to 10 m/s in 240 s. how can the train's
acceleration be described?
a. the train's acceleration is negative.
b. the train is not accelerating.
c. the train will come to rest in 6 minutes.
d. the train's acceleration is positive.

A

Explanation:

V1=25m/s

V2=10m/s

t=240s

a=(V2-V1)/t

a=(10m/s-25m/s)/240s

a= -0.0625 m/s2

depends on what you mean by "group." for order, it would be coleoptera (beetles). for class, it would be insecta (insects). for phylum, it would be the arthropoda (animals with jointed exoskeletons).

explanation:

the answer would be c