Question

a train is moving with a velocity of 45 km/hr.calculate travelled by it in 1 hr,1 min,1 second​

Answer 1

Question:

A train is moving with a velocity of 45 km/hr.Calculate total displacement travelled by train in 1 hr,1 min,1 second​.

Answer:

45.72 km

Explanation:

$First \ let \ us \ convert \ minute \ and \ second \ in \ hour.\\\\\\Given \ time=1 \ hour, \ 1, \ minute, \ 1, \ 1 second\\\\\\time \ in \ hours=1+\frac{1}{60}+ \frac{1}{60\times60}\\\\\\=\frac{3600+60+1}{3600}=\frac{3661}{3600}=1.016\ hours\\\\\\Now \ we \ have \ velocity \ and \ time\\\\\\we \ know \ displacement=velocity \times time\\\\\\Displacement=45\times1.016km\\\\\\Displacement=45.72 \ km$

This , the total displacement of travelled by train is 45.72 km.