Question

In the fuse wire of a diwali bomb, the flame
propagates with constant velocity v = 0.8 cm/s.
What is the minimum length of the fuse a man
should have so that he can run off to a safe distance
of 120 m after igniting the flame, while the flame
will not reach the bomb? The speed of person is
Vp= = 4 m/s.
(1) 24m
(2) 24cm
(3) 12 cm
(4) 12m​

Answer 1

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