Posted: September 6th, 2020
Why do we choose to measure the velocity as close to the collision
ost lab 5:1. What fraction of energy will be lost when a moving cart of mass inelastically collideswith a stationary cart of mass ?2. Why do we choose to measure the velocity as close to the collision as we can? Whatwould happen if we measured the velocity several seconds afterwards?3. How much more energy does a car going at 60 mph have compared to a car going at 30mph?4. One rubber ball and one mud ball travel towards a wall with the same velocity. Therubber ball bounces off with the same speed and the mud ball sticks. Which one is theelastic collision and which ones is the inelastic collision? Which ball transfers moremomentum to the wall? how much and why? Balls have the same mass.5. A ball of mass 100g is dropped from a height H=2m above the floor. It reboundsvertically to a height h=1.5 m after the colliding with the floor. Find the momentum ofthe ball immediately before and after the ball collides with the floor. Find the coefficientof restitution and determine the type of collision. Show your work.
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