is a form of electromagnetic radiation that has both wavelike and particle-like properties.

Light

Explanation:

The ability of light to exist as a wave and have particle-like properties is known as the wave-particle duality nature of light.

Light exist as a transverse electro-magnetic wave and also as a particle due to the fact that it contains photons and it emits electrons when it bombards a surface. This is known as photoelectric effect.

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

change tension