Arunner can run a 400.0 meter lap in 50.0 seconds. he finishes at the same spot as he began. what is his average velocity?

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

While the change in blank will remain the same during a collision, the force needed to bring an object to a stop can be blank if the time if collision is blank

Using the free-body diagram, calculate the net force acting on the sled. is the sled in a state of dynamic equilibrium?