Asmall toy cart equipped with a spring bumper rolls toward a wall with a speed of v. the cart rebounds from the wall, with the same speed v. the sketch below shows the initial velocity vector vi , final velocity vector v f, and the initial momentum vector p i. using the initial momentum vector as a basis, draw the change in momentum vector δp for the cart. you can obtain each vector's length and orientation by clicking on it to select it.

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.