abdullahAK
Badges: 12
Rep:
?
#1
Report Thread starter 1 year ago
#1
Hello,need help with this question.
AA train of length 100m is moving at a speed of 50km/h.A horse is running alongside the train at speed of 56km/h?
how long will it take the horse to overtake the train?
0
reply
abdullahAK
Badges: 12
Rep:
?
#2
Report Thread starter 1 year ago
#2
sorry by mistake it is posted in the wrong forum.
0
reply
Mr.noname
Badges: 12
Rep:
?
#3
Report 1 year ago
#3
Draw a diagram, assume that the horse is initially at the back end of the train.
0
reply
abdullahAK
Badges: 12
Rep:
?
#4
Report Thread starter 1 year ago
#4
ok,then
0
reply
Mr.noname
Badges: 12
Rep:
?
#5
Report 1 year ago
#5
(Original post by abdullahAK)
ok,then
Then suppose there is a distance x at which both the horse and train meet. Form two equations , using speed=distance/time for the horse and the train. Solve the equations simultaneously by eliminating the distance x and you should end up with an equation that can be solved for t.
0
reply
Mr.noname
Badges: 12
Rep:
?
#6
Report 1 year ago
#6
Use distance travelled by train=x and distance travelled by horse= 0.1+x (the 0.1 comes from the fact that the train is 100m long hence 0.1 km long, which is the extra distance the horse must travel).
0
reply
ghostwalker
  • Study Helper
Badges: 17
#7
Report 1 year ago
#7
(Original post by abdullahAK)
...
As an alternative method.

The horse is travelling 56-50 = 6 km/hr faster than the train. So, the question becomes how long does it take to go 100m at 6km/hr?
0
reply
the bear
Badges: 20
Rep:
?
#8
Report 1 year ago
#8
you should probably change 6 km/hr to 6000m/hr & then into m/min...
0
reply
X

Quick Reply

Attached files
Write a reply...
Reply
new posts
Back
to top
Latest
My Feed

See more of what you like on
The Student Room

You can personalise what you see on TSR. Tell us a little about yourself to get started.

Personalise

Are you travelling in the Uni student travel window (3-9 Dec) to go home for Christmas?

Yes (50)
31.65%
No - I have already returned home (20)
12.66%
No - I plan on travelling outside these dates (33)
20.89%
No - I'm staying at my term time address over Christmas (14)
8.86%
No - I live at home during term anyway (41)
25.95%

Watched Threads

View All