a train moves at a constant speed of 75 km /hr (1)how far it will travel in 20 minutes (2)find the time required to cover distance of 250 km
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9
Given :
u = 75 kmph
v = 75 kmph
a = 0
(1) t = 20 min = 1/3 hr
s = ?
s = ut + (1/2)×at^2
= (75×1/3) + 0
= 25 km
(2) s = 250 km
t = ?
s = ut+ (1/2)×at^2
250 = (75×t) + 0
t = 250/75
= 50/15
= 10/3
= 3.33 hr or
= (10/3)×60 min
t = 100 min
hope this helped you,
plzzz mark as brainliest ........ !!!
u = 75 kmph
v = 75 kmph
a = 0
(1) t = 20 min = 1/3 hr
s = ?
s = ut + (1/2)×at^2
= (75×1/3) + 0
= 25 km
(2) s = 250 km
t = ?
s = ut+ (1/2)×at^2
250 = (75×t) + 0
t = 250/75
= 50/15
= 10/3
= 3.33 hr or
= (10/3)×60 min
t = 100 min
hope this helped you,
plzzz mark as brainliest ........ !!!
Answered by
4
it will travel 25 km In 20 minutes. And will cover 250 km in 3 hours and 20 minutes
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