Question

A train starts from rest at a station and accelerates at the rate of 2
m/s2 for 10 seconds. It then runs at a constant speed for 30 seconds
and slows down at 4/m2 until it stops at the next station.
A. What is the speed of the train when time t = 20s'
B. What is the total distance traveled by the train until it stops​

Answer 1

Answer:

hey buddy I have answer for you

Explanation:

A. take the first equation of motion

v=u+at

v=0+2(20)

v=40m/s

B. take 2nd equation of motion

s=ut+½at²

s=0(20)+½(2)(20)²

s=0+400

s=400m

Hope this helps you...

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