Homework Help: Physics

Posted by Sydney on Wednesday, October 5, 2011 at 7:55pm.

A shell is fired from the ground with an initial speed of 1.68 103 m/s at an initial angle of 37° to the horizontal.
(a) Neglecting air resistance, find the shell's horizontal range.
m
(b) Find the amount of time the shell is in motion.
s

Physics - bobpursley, Wednesday, October 5, 2011 at 8:01pm
time in air:

vertical speed initial: 1.68E3 sin 37
hf=hi+Vi*t-1/2 g t^2
0=0+1.68E3 sin 37 *t-4.8t^2
solve for time of flight, t.

horizontal range:
distance= 1.68E3*cos37*t

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