Asoftball is thrown from the origin of an x-y coordinate system with an initial speed of 18m/s at an angle of 35 degrees above the horizontal part b find the y positions of the softball at times t=0.50 s t=1.0 s t=1.5 s, t=2.0 s

Distance = speed × time

After 0.5s , horizontal distance covered is 0.5s × 18m/s = 9m

9m/ y position = cos 35° , y position = 9 ÷ cos 35° = 10.9870m  (rounded up to nearest four decimal places)

After t = 1.0s:

Horizontal distance = 18m/s × 1.0s = 18m

y position = = 21.9740m (rounded up to nearest four decimal places)

After t = 1.5s:

Horizontal distance = 18m/s × 1.5s = 27m

y position = = 32.9709m (rounded up to nearest four decimal places)

After time is 2.0s:

Horizontal distance = 18m/s × 2.0s = 36m

y position = = 43.9479m (rounded up to nearest four decimal places)

it is called kinetic energy

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.