# The diagram below shows the rectangle boar find the length of line pa if entering your answer as a decimal

## Top Questions

motionless puck as shown on the picture above. The net force that the stick applies on the puck is 150N and the contact lasts for 7.5 ms. The mass of the puck is 166 g. A) (1 point) Calculate the acceleration of the puck under the influence of the net force. B) (2 points) Calculate the puck's change in momentum due to the impulse applied by the hockey stick. C) (1 point) What is the velocity of the puck once it leaves the stick? Puck travels over rough ice and comes to a stop after 25 m. The force diagram below shows all forces acting on the puck during that travel. Screen Shot 2020-11-02 at 2.04.05 PM.png D) (1 point) Calculate the work done on the puck by gravitational force. E) (1 point) Calculate the work done on the puck by normal force. F) (2 points) Calculate work done by friction force on the puck. CNX_UPhysics_09_03_HockeyPuck.jpg Now stationary, the puck (red) collides with a blue puck of the mass .332 kg moving to the left with velocity of 2.5 m/s. If collision is perfectly elastic calculate: H) (2 points) Total momentum of blue+red puck system before collision? I) (1 point) What is the total momentum of blue+red puck system after collision? How do you know? J) (2 points) What is the velocity of the blue puck after collision?
View More