Question

1) Water leaves a fireman’s hose (held near the ground) with an
initial velocity *v _{0}* = 21.5 m/s at an angle

**Part (a)** Using *v _{0}*,

**Part (b)** At what horizontal distance *d*
from the building base, where should the fireman place the hose for
the water to reach its maximum height as it strikes the building?
Express this distance, *d*, in terms of
*v _{0}*,

2)Suppose a goalkeeper can give the ball a speed of 27 m/s. What is the maximum horizontal distance the ball could go in meters?

Answer #1

PROBLEM A long jumper (see figure) leaves the
ground at an angle of 20.0°to the horizontal and at a speed of 11.0
m/s. (a) How long does it take for him to reach
maximum height? (b) What is the maximum height?
(c) How far does he jump? (Assume his motion is
equivalent to that of a particle, disregarding the motion of his
arms and legs.) (d) Use the proper equation to
find the maximum height he reaches.
STRATEGY Again, we...

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d = 55.0 m
away from the building. Find the height h (in m) where
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.

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pistil

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A
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In the 2-D
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1. A fireman is at ground level and 33.5m away from a burning
building. He directs a stream of water from a hose at an angle of
27.2o above the horizon, where the speed of the water is
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The physics of a fired canon ball.
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Determine the maximum height the cannon ball reaches in its
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Draw a sketch of the motion of the projectile including the
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strikes the...

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