A 7.5 kg cannon ball leaves a canon with a speed of 185 m/s. Find the average net force applied to the ball if the cannon muzzle is 3.6 m long.

F = 35651 [N]

Explanation:

To solve this problem we must use Newton's second law, which tells us that the sum of forces is equal to the product of mass by acceleration.

But first, we must use the following equation of kinematics to find acceleration.

where:

Vf = final velocity = 185 [m/s]

Vi = initial velocity = 0 (the cannon ball is at rest in the first moment)

a = acceleration [m/s²]

x = distance = 3.6 [m]

Now replacing these values into the equation:

(185)² = 0² + (2*a*3.6)

34225 = 7.2*a

a = 34225/7.2

a = 4753.5 [m/s²]

Now using Newton's second law we have:

F = m*a

where:

F = force [N]

m = mass = 7.5 [kg]

F = 7.5*4753.5

F = 35651 [N]

Explanation :

When a ray of light passes through the narrow opening then the light diffracts. The process is known as the diffraction of light.

By examining a wave's pattern after it interacts with a barrier or gap, measurements can be made to better understand diffraction wave phenomena.

After diffracting the light forms a pattern consisting of dark and bright bands.

Hence, the question could be " How diffraction of wave occurs? Explain ".