physics
posted by Mara .
A shell is ﬁred from the ground with an initial
speed of 1.70 × 10
3 m/s (approximately ﬁve
times the speed of sound) at an initial angle
of 70.0
◦
to the horizontal.
The acceleration of gravity is 9.81 m/s
2
.
a) Neglecting air resistance, ﬁnd the shell’s
horizontal range.
Answer in units of m

range = v^2 sin2θ/g = 1700^2 * sin(2*70°)/9.8 = 189.4km
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