An object falls freely from a height of 25m onto the roof of a building 5m high Calculate the velocity with which the object stricks the roof
calculate the maximum height of a ball of mass 1.4kg will attain if projected vertically upward with an initial velocity of 17m/s

The temperature at a point (x, y) is t(x, y), measured in degrees celsius. a bug crawls so that its position after t seconds is given by x = 6 + t , y = 8 + 1 3 t, where x and y are measured in centimeters. the temperature function satisfies tx(3, 9) = 5 and ty(3, 9) = 4. how fast is the temperature rising on the bug's path after 3 seconds? (round your answer to two decimal places.)