Question

Q1.
A rocket of length 17 m is going up with a constant velocity of 8 km/s. How much time will it take to cross a
window (with vertical length 3 m)?
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Answer 1

Answer:

0.0025 sec

Explanation:

It is a problem based on relative velocity.

vel. of rocket=8000m/s

vel.of window=0m/s

time taken to cross the window = (17+3)m/8000

=20/8000=0.0025sec