Question #15940

005 (part 1 of 2) 10.0 points
An artillery shell is ﬁred at an angle of 69.8
◦
above the horizontal ground with an initial
speed of 1930 m/s.
The acceleration of gravity is 9.8 m/s
2
.
Find the total time of ﬂight of the shell,
neglecting air resistance.
Answer in units of min
006 (part 2 of 2) 10.0 points
Find its horizontal range, neglecting air resistance.
Answer in units of km
007 10.0 points
A stone is thrown from ground level at 77 m/s.
Its speed when it reaches its highest point is
52 m/s.
Find the angle, above the horizontal, of the
stone’s initial velocity.
Answer in units of ◦

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