Question
How many seconds will a train 60 m in length, travelling
at the rate of 40 km an hour, take to pass another train 80 m long, proceeding in the same direction at the rate of 26 km an hour?Solution
Relative speed = 40 โ 26 = 14 km/hr Speed (m/sec) = 14 ร (5/18) = 35/9 m/sec Time = Total length of both the trains/Relative speed => Time = (80 + 60)/(35/9) = 36 sec
Electrical fuse is used to interrupt excess of _________.
Which of the following statements best describes the relationship between static friction and the normal force?
Which Nobel Gas is also known as โStranger Gasโ?
The S.I. unit of the electric flux is
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Which of the following Instrument is used to measure humidity?
The Atom Bomb dropped in Nagasaki is an uncontrolled nuclear fission made up of:
The instrument which uses sound waves to measure the depth of oceans is โ
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