Find the speed and length of the train being given that it travelled with a constant speed past a stationary observer for 7sec and needed 25 sec to pass a platform 378m long with the same speed
Answers
Answered by
0
Answer:
sorry dear don't know
MARK ME AS BRAINLIST PLZ
Answered by
0
Explanation:
Solution
Let the speed of the train be
x
m/s
Length of train
=
Speed of train
×
Time taken to cross the observer
Length of train
=
7
x
⟶
(
I
)
length of train
+
length of platform
=
Speed of train
×
Time taken to cross the platform
7
x
+
378
=
7
x
×
25
378
=
168
x
x
=
2.25
m/s
x
=
8.1
km/hr
length of train
=
7
x
=
15.75
m
Similar questions