1. A ball with a mass of 10.0 g hits a 5.0 kg block of wood tied to a string, as shown. You may assume that there is no friction from the string. The ball hits the block in a completely inelastic collision, causing the block to rise to a maximum height of 8.0 cm. Find the initial horizontal speed of the ball. You may assume that the string is very long. ||| Ah = 8.0 cm Press here for long description 2.A 1.2 kg cart moving at 6.0 m/s [E] collides with a stationary 1.8 kg cart. The head-on collision is completely elastic and is cushioned by a spring. a. Find the velocity of each cart after the collision. b. The maximum compression of the spring during the collision is 2.0 cm. Find the spring constant.
1. A ball with a mass of 10.0 g hits a 5.0 kg block of wood tied to a string, as shown. You may assume that there is no friction from the string. The ball hits the block in a completely inelastic collision, causing the block to rise to a maximum height of 8.0 cm. Find the initial horizontal speed of the ball. You may assume that the string is very long. ||| Ah = 8.0 cm Press here for long description 2.A 1.2 kg cart moving at 6.0 m/s [E] collides with a stationary 1.8 kg cart. The head-on collision is completely elastic and is cushioned by a spring. a. Find the velocity of each cart after the collision. b. The maximum compression of the spring during the collision is 2.0 cm. Find the spring constant.
Principles of Physics: A Calculus-Based Text
5th Edition
ISBN:9781133104261
Author:Raymond A. Serway, John W. Jewett
Publisher:Raymond A. Serway, John W. Jewett
Chapter8: Momentum And Collisions
Section: Chapter Questions
Problem 15P
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ONLY question 2 b)
so what I would like you to do is read the questions and read the feedback and fix my answers thats all
here is the question :
Here is the feedback :
You still did not take into consideration that the combined masses are moving when the spring is compressed. Find speed of combined mass at maximum compression using Momentum equation PTI = PTF and then use Energy Equations to solve for the spring constant. Ek1 + Ek2 = EkT + EE Where EE is the elastic energy stored in the spring. Then use EE = 0.5kx2 to solve for k
here is my answer : fix it correctly and give me the final answer :
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