What is the acceleration if velocity increases from 10 m/s to 15m/s after travelling a distance of 5 metre
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Let's call d the distance of the cannon from us. We see the flash first, then after 6.9 s we hear the sound. The flash arrives to us traveling at speed of light, which is 
, while the sound travels at speed 
. Since the magnitude of the speed of light is much much larger than the speed of sound, we can assume that the flash arrives at our location instantaneously after the firing.
Then we can say that the sound wave covers a distance d traveling at speed v in a time of t=6.9 s. Since it is a uniformly linear motion, the distance covered by the sound wave is
So, this is the distance of the cannon from us.
Then we can say that the sound wave covers a distance d traveling at speed v in a time of t=6.9 s. Since it is a uniformly linear motion, the distance covered by the sound wave is
So, this is the distance of the cannon from us.
The power output is, 2800 watt. Power is defined as the rate of the work done.
<h3>What is force?</h3>Force is defined as the push or pull applied to the body. Sometimes it is used to change the shape, size, and direction of the body. Force is defined as the product of mass and acceleration. Its unit is Newton.
The power output is found as;
Hence,the power output is, 2800 watt.
To learn more about the force, refer to the link;
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