Scientist can measure the depths of crayers on the moon by looking at pictures of the shadows. the length of the shadow cast by edge is 500 meters. the angle of elevation of the rays of the Sun is 55 degrees estimate the depth of the crater

Consider the following position function. find (a) the velocity and the speed of the object and (b) the acceleration of the object. bold r left parenthesis t right parenthesisr(t)equals=left angle 6 t superscript 4 baseline comma 2 t cubed right angle6t4,2t3 for tgreater than or equals≥0