Enlist the various precautions one has to take to protect himself/herself from STDs.

She sat on the tree to protect herself from the rain.

Do you think that friends can influence one to take alcohol/drugs? If yes, how may one protect himself/herself from such an influence?

Do you think that friends can influence one to take alcohol/drugs? If yes, how may one protect himself/herself from such an influence?

It is raining at a speed of 5m//s^(-1) at an angle 37^(@) to vertical, towards east. A man is moving to west with a velocity of 5 m//s^(-1) .The angle with the vertical at which he has to hold the umbrella to protect himself from rain is.

Mention three precautions that you will take to protect yourself if earthquake strikes when you are inside the house.

A person is in open space during a thunderstorm with no shelter (not even a tree) available nearby. Describe the safe position which he should take to protect himself from lightning. Why is this position considered safe ?

What are the measures one has to take to prevent from contacting STDs?

Statement -1 : A man standing on the ground has to hold his umbrella at an angle theta with the vertical to protect himself from rain. It is possible that the man now starts running on the ground with certain speed, but he still has to hold his umbrella at angle theta with the vertical to protect himself from rain. Statement -2 : Vertical component of velocity of rain w.r.t man does not change. if he starts running on a horizontal ground.

A person is standing on road by holding an umbrella at right angle to the horizontal surface in order to protect himself from rain falling at a speed of 10 m/s, when the velocity of wind is zero. Suddenly wind begins to flow at a speed of 20m/s, 30^(@) south of west. Now by what angle the person has to rotate his umbrella in order to protect himself from rain ?