If an object is related from top of 200m high building find its velocity and time when it hits the ground.(g=(10m/s^2)

The velocity at the ground is 63.25 m/s and time taken is 6.325 s.

Explanation:

Given:

As the object is released, the initial velocity is,

Displacement of the object is,

To find:

Velocity at the bottom,

Time to reach the bottom,

The acceleration of the object is due to gravity and hence equal to

Now, using the following equation of motion:

Now, using the equation of motion relating time and velocity:

Therefore, the velocity at the ground is 63.25 m/s and time taken is 6.325 s.

weather forecasts are done by collecting data about the current state of the atmosphere mainly the temperature, humidity and wind and using meteorology, to determine the atmosphere that evolves over time. the h and l mean the high and low pressure. the red strip is a warm front. the blue strip is a cold front. the blue and red strip is a stationary front. the purple strip is a occluded front.

explanation:

that tool is called an altimeter which measures your altitude which can be used to tell which atmosphere you are currently in, including the stratosphere.

hope this ! : )