A train of length 500 metre equal along east direction with 15 metre per second. A bird is moving above it along west with speed 10 metre per second then find out the time taken by the bird to cross the train.
Answers
Answered by
3
Explanation:
Given
Length of train = 500 metre
Speed of train = 15 metre per second in east direction
Speed of bird = 10 metre per second in West direction
According To Problem
=> Vr = Vt + Vb
=> Vr = 10 + 15
=> Vr = 25 metre per second
Now we know that
Speed = distance \ time
So time = Distance \ speed
=> Time = 500 \ 25
=> Time = 20 seconds
Hence
Bird will cross train in 20 seconds
Answered by
0
Answer:
Given
Speed of moving rocket = 500 kilometre per hour
Speed of ejection product combustion = 2000 kilometre per hour with respect to itself
A.T.Q.
By Concept of relative speed
=> Vr = Vj + VP
=> 2000 = 500 + Vp
=> Vp = 1500 km/ h
Hence
Speed of combustion product is 1500 km per hour.
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