A hockey puck sliding along the ice to the left hits the boards head-on with a speed of 35 m/s. As it reverses direction, it is in contact with the boards for 0.095 s, before rebounding at a slower speed of 11 m/s. Deter-mine the average acceleration the puck experienced while hitting the boards. Typical car accelerations are 50 m/s2. Comment on the size of your answer, and why it is so different from this value, especially when the puck speeds are similar to car speeds.
Answer to relevant QuestionsWhat is the acceleration for each graph segment in Fig. 2.23? Describe the motion of the object over the total time interval. A car accelerates from rest at a constant rate of 2.0 m/s2 for 5.0 s. (a) What is the speed of the car at the end of that time? (b) How far does the car travel in this time? Two identical cars capable of accelerating at 3.00 m/s2 are racing on a straight track with running starts. Car A has an initial speed of 2.50 m/s; car B starts with speed of 5.00 m/s. (a) What is the separation of the two ...(a) Show that the area under the curve of a velocity-versus-time plot for a constant acceleration is equal to the displacement. (b) Compute the distance traveled for the motion represented by Fig. 2.23. A hospital nurse walks 25 m to a patient’s room at the end of the hall in 0.50 min. She talks with the patient for 4.0 min, and then walks back to the nursing station at the same rate she came. What was the nurse’s ...
Post your question