Is it possible to eject electrons from titanium metal using visible light?

No, it is impossible

Explanation:

When we talk about electrons being ejected from a metal, we are talking about the photoelectric effect, which consists of the emission of electrons (electric current) that occurs when light falls on a metal surface under certain conditions.  

This is what Einstein proposed with the photoelectric effect:  

Light behaves like a stream of particles called photons with an energy  , which has an inverse relation with the wavelength (this means the smaller is the higher the energy):

Where is the Planck constant and is the speed of light in vacuum.

On the other hand, it is known titanium metal requires a photon with a minimum energy to emit electrons. This means, we need at least a wavelength to fulfill this condition.

Therefore:

Since the wavelength range of visible light is between 400nm and 750nm, aproximately, and 286 nm is not in this range; it is impossible to to eject electrons from titanium metal using visible light.

weight of the box is given as

here this is placed on the inclined of angle 42 degree

now this weight will have two components one is along the incline other is perpendicular to it

so here we need to apply a force parallel to incline opposite to its component of weight

so here the component of weight is given as

here we have

so it requires 75 n force to move it upwards