Question

A train 150m long is moving at a speed of 30km/hr. It will cross a cyclist coming from the opposite direction at a speed of 10km/hr in how many seconds?

plz answer with explanation​

Answer 1

Answer:

Train will cross cyclist in 3.75 hours.

Step-by-step explanation:

Since we have given that

Length of train = 150 m

Speed = 30 km/hr

Speed of cyclist = 10 km/hr

They are in the opposite direction .

So, Relative speed = 30+10 = 40 km/hr

So, According to question, time is given by

Hence, train will cross cyclist in 3.75 hours.

# learn more:

A cyclist Travels at a speed of 10 km per hour for 3 hours and then at a speed of 15 km per hour for 2 hour find its average speed

Answer 2

Answer:

length of train 150m

speed us 30km/hr

then,cyclist speed is 10km/hr

now relation speed is 30km/hr +10km/hr =50km/hr

now to convert in m/s multiple by 5/18

so after multiplication 100/9 m/s

to find time =distance /speed

time =150×9/100

hence time is 13.7