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3 years ago

If a speeding train hits the brakes and it takes the train 39 seconds to go from 54.8 m/s to 12 m/s what is the acceleration?

Physics

2 answers:

jekas [21]3 years ago

8 0

Answer:

-1.09m/sec^2

Explanation:

Acceleration= (Vf-Vi)/Time

=12-54.8

= -42.8

= -42.8/39

=-1.09

-ve sign is due to recoil of train

as it suddenly hits brakes.

user100 [1]3 years ago

6 0

Answer:1.097 m/s^2

Explanation:

a=(final velocity- initial velocity )/time

=(54.8-12)/39

=1.097 m/s^2

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2 years ago

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3 years ago

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