2. Two projectiles thrown from the same point at angles 0,=60° and 02=30° with the horizontal, attain the same height. What is the ratio of their initial velocities (Voi:Voz)?

The answer is below

Explanation:

The maximum height (h) of a projectile with an initial velocity of u, acceleration due to gravity g and at an angle θ with the horizontal is given as:

Given that the two projectile has the same height.

Option (B) is the correct answer.

Explanation:

A conductor which allows the quick or easy movement of charges through it is known an electrical conductor.

For example, copper is a good conductor of heat and electricity.

Whereas wood is a non-conductive substance as it does not allow the movement of charges through it. Thus, wood is a non-conductive in nature.

Glass is a poor conductor of electricity as it inhibits the flow of free movement of electrons through it.

Insulators are the substances or material in which there is also no movement of electric charges or very little movement of electric charges.

Thus, we can conclude that out of the given options, an electrical conductor allows charges to flow easily.