Gerard is measuring the speed of a remote-controlled airplane. He measures that the airplane travels 110 m in 5.4 seconds, givin
1 answer:
Gerard need to change the Acceleration.
<h3>What is speed?</h3>Speed is defined as the distance travelled by an object in a unit time.
Mathematically ,
Speed =
Here the given values are:
Distance = 110m and time = 5.4 s
Speed = = 20 m/s
For increasing the speed he need to change the acceleration.
Which is define as the rate at which velocity changes with time, in terms of both speed and direction.
Any change in the velocity of an object results in an acceleration , increasing speed (what people usually mean when they say acceleration).
learn more about speed: brainly.com/question/7359669
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Answer:
a) The distance of spectator A to the player is 79.2 m
b) The distance of spectator B to the player is 43.9 m
c) The distance between the two spectators is 90.6 m
Explanation:
a) Knowing the time it takes the sound to reach both spectators, we can calculate their position relative to the player, using this equation:
x = v * t
where:
x = position of the spectators
v = speed of sound
t = time
Then, the position for spectator A relative to the player is:
x = 343 m/s * 0.231 s = 79.2 m
b)For spectator B:
x = 343 m/s * 0.128 s
x = 43.9 m
The distance of spectator A and B to the player is 79.2 m and 43.9 m respectively.
c) To calculate the distance between the spectators, please see the attached figure. Notice that the distance between the spectators is the hypotenuse of the triangle formed by the sightline of both. We already know the longitude of the two sides. Then, using Pythagoras theorem:
(Distance AB)² = A² + B²
(Distance AB)² = (79.2 m)² + (43.9 m)²
Distance AB = 90. 6 m
