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NNADVOKAT [17]
2 years ago
9

Gerard is measuring the speed of a remote-controlled airplane. He measures that the airplane travels 110 m in 5.4 seconds, givin

g a speed of 20 m/s. What will Gerard need to change, if he wants to get a more precise value for speed
Physics
1 answer:
netineya [11]2 years ago
3 0

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 =\frac{Distance}{Time}

Here the given values are:

Distance = 110m and  time = 5.4 s

Speed = \frac{110}{5.4} = 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

#SPJ1

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You are designing a ski jump ramp for the next Winter Olympics. You need to calculate the vertical height (h) from the starting
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Answer:

h = 50.49 m

Explanation:

Data provided:

Speed of skier, u = 2.0 m/s

Maximum safe speed of the skier, v = 30.0 m/s

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Now, from the law of conservation of energy

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\frac{1}{2}mu^2+mgh=4000J+\frac{1}{2}mv^2

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on substituting the values, we get

\frac{1}{2}\times85\times2.0^2+85\times9.81\times h=4000J+\frac{1}{2}\times85\times30^2

or

170 + 833.85 × h = 4000 + 38250

or

h = 50.49 m

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