Consider a runner traveling with an initial velocity of 1.9 m/s in the positive direction accelerates at a constant rate of 1.2 m/s2 for a time of 3 seconds. what is his velocity at the end of this time?

5.5 m/s

Explanation:

As we are told the runner  accelerates at a constant rate, we can use the following equation:

Where:

is the runner's final velocity

is the runner's initial velocity

is the runner's constant acceleration

is the time it takes the runner to reach the final velocity

Finally:

answer: the metamorphic rocks are formed when they are exposed to high pressure and high temperatures. this happens when one of the earth's plates comes in contact with the other plate by traveling in opposite directions, straight into each other or slipping under one another. the friction that is caused by this activity results in   melting of rocks and when it cools they are known as metamorphic rocks. this process needs a controlled amount of pressure and temperature otherwise it may turn into magma.