Awater balloon is thrown at an angle of 30° with a velocity of 40 m/s. how long do you have to move out of the way if the balloon was 20m away from you when it was thrown?

t=0.58s

Explanation:

We can consider only the horizontal component since the horizontal component of the velocity is constant (), and we want to know how much time it takes for the balloon to travel a horizontal distance at that speed. The definition of (horizontal) velocity is , so we have:

blue light is scattered in different directions by the tiny molecules of air. blue is scattered more than other colours because it has a shorter distance to travel which results in smaller waves. this is why we see a blue sky most of the time.