please Solve it's urgent
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Answers
Answered by
3
Answer:
v=u+at
WKT, v=0 and we have to find u
v=u-at
0=u-2×20
u=40
Answered by
1
Answer:
40m/s
Explanation:
v= 0 as the train will stop
t= 20 sec
a= -2m/s^2
u=?
using the formula
v= u+at
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