Question

A bullet is fired with a speed of 100 m/s and after covering distance of 2 km it fell down calculate time taken and acceleration af the bullet

Answer 1

Hey!!

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given u=100 m/s

v=0(as it falls down)

d =2000m

using

v^2-u^2=2as

0-1000=2×a×2000
a=-0.25m/s^2

also v=u+at

0=100-0.25×t

t=400 seconds

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Thanks!!!