Question

A bullet is fired in a horizontal direction with a muzzle velocity of 300m\s. In the absence of air resistance, how far will it have dropped in travelling a distance of:
a)20m. (b)40m (c) 60m. (d) How far will it drop in one second

Answer 1

Answer:

(a) S = ut+1/2at² (a=0)

S=ut

t= s/u

t= 20/300

t= 0.067 sec

h= ut+1/2gt² ( u=0)

h= 1/2*5*(0.067)²

h= 0.022 m

(b)s should be equal to 40m

(c) S = 60m

(d) h=ut+1/2gt² (u=0)

h=1/2gt² (g=9.8 or 10)

h= 1/2*9.8*1

h= 4.9m ( if g=10, h=5m)