Question

a bullet weighting is fire with a velocity of 800m/s.after passing through amud wall 1m thick,its velocity decreases to 100m/s. find the average resistance offered by the mud wall.........

please solve numerical

Answer 1

a=(u^2-v^2)/(25)
=(800^2-100^2)/(2×1)
=315000m/s^2

F=ma
=10×10^-3×315000
=3150N
resistant by mud wall is 3150N