Question

95. A passenger in a train, moving with a
speed of 72 km/hr, sees another train
moving with a speed 32.4km/hrin opposite
direction for 10 seconds through a window.
The length of the second train is .......
1) 300 m 2) 240 m 3) 270 m 4) 290 m

Answer 1

Answer:

290m/a

Explanation:

Answer 2

Answer:

Explanation:

L2=72x5/18=20m/s

L1=32.4x5/18=9m/s

Sees=29m/s

Sees=29x10=290m

*l2=290m as window is a point particle wi/no significant length of its own