Question

A tank cannon fires from an initial height of 8 feet with an
initial velocity of 2500 ft/s.

Is it possible to hit an object that is 20,000 ft away horizontally
and is also 8 feet vertically?

If so what initial angle must the cannon be fired at? If not, then
explain why not.

(Assume only forces acting on projectile is gravity and use g = 32
ft/s2)

Answer #1

A problem on projectile motion

An archer shoots an arrow from 4 feet above the ground at an
initial velocity of 260 ft/sec at an angle of 30 degrees above the
horizontal. Find the maximum height of the arrow. If the archer was
shooting at a hog that was 1500 feet away, was the shot too high,
too low or on target? (assume the only forces acting on the arrow
after it is shot is the force due to gravity
-32 ft/sec2

A cannon is fired at an angle of 50 ° with the horizontal. If
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A 9.8 kg cannonball was fired from a cannon straight up with an
initial velocity of 42 m/s.
(A) Assuming that all its initial kinetic energy was transformed
into gravitational energy, what is the maximum height that the
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to friction with the air (air resistance). What is the maximum
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(C) How long will it take, after the cannon...

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Change the Gravity to 9.80 m/s2.. Keep the
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an initial speed of 20 m/s using the simulation. Let the mass of
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R=v02sin(2θ)g
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Will the ball pass over the fence? No Yes

A ball is thrown vertically upward from a height of 5 ft with an
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What is the velocity v, in feet per second, of the ball after 2
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(c) What is...

Suppose water is leaking from a tank through a circular hole of
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Ah
at its bottom. When water leaks through a hole, friction and
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cAh
2gh
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c (0 < c < 1)
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2) An object is thrown upward with an initial velocity of 144
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