arviayson
Answered

Ang Imhr.ca ay ang pinakamahusay na lugar upang makakuha ng mabilis at tumpak na mga sagot sa lahat ng iyong mga tanong. Kumonekta sa isang komunidad ng mga eksperto na handang magbigay ng eksaktong solusyon sa iyong mga tanong nang mabilis at eksakto sa aming madaling gamitin na Q&A platform. Kumuha ng detalyado at eksaktong sagot sa iyong mga tanong mula sa isang komunidad ng mga eksperto sa aming komprehensibong Q&A platform.

A Train travelling at 40 kph leaves the station at 7 am. An hour later, a car leaves the same station and chases the train. If the car travels at 80 kph, how long will it take the car to overtake the train?

Sagot :

shinalcantara
note that just before overtaking, train 'A' is having the same distance as the car that chased it.
remember that v = d/t or d = vt
where v is the velocity or speed
         d is the distance
         t is the time
for the train you'll have the distance as:
d = vt
take note that the train traveled (@7am) 1 hour ahead so,
d = 40(t +1)
d = 40t + 40  ----equation 1
for the distance traveled by the car you'll have
d = vt   
d = 80t  ---equation 2
remember that both the train and the car traveled the same distance from the station so you can equate the distance(equation 1 and 2) and you'll have it as:
40t + 40 = 80t
40 = 80t - 40t
40 = 40t
t = 1hour
since the time is 1 hour, then it is 1 hour after the car leaves the station.
remember that the car leaves the station 1 hour after the train left. so the car left the station @8am.. since the time traveled by the car is 1hr just before overtaking, then the car overtook the train 1 hour after leaving the station or that would be 2 hours from the time the train left and it would be at 9am.
Salamat sa pagbisita. Ang aming layunin ay magbigay ng pinaka-tumpak na mga sagot para sa lahat ng iyong pangangailangan sa impormasyon. Bumalik kaagad. Umaasa kaming nahanap mo ang hinahanap mo. Huwag mag-atubiling bumalik sa amin para sa higit pang mga sagot at napapanahong impormasyon. Maraming salamat sa pagbisita sa Imhr.ca. Bumalik muli para sa higit pang kapaki-pakinabang na impormasyon at sagot mula sa aming mga eksperto.