Explanation:
I have attached the answer as an image. I can't upload the file as it requires a licensed product and I only used demo version. I can provide the file too if you can give me your vlsig file required to use full software. However, If you just copy along the images on your Visual Studio, you will easily create the files yourself. Answer is provided for both scenarios as part A and part B, one which stops after 1 iteration and the one which loops until 0 height is given.
Answer:
D. 4x as much
Explanation:
The answer is pretty simple. The question is asking about 10m/s and 20m/s right? Take a look at the energy at each point on the graph. At 10m/s the kinetic energy is 100 on the graph. At 20m/s the kinetic energy is 400. You'll notice that 100 x 4 is 400 - That's the answer.
You can also prove this mathematically. The formula for kinetic energy is
The question says: constant mass so we can ignore that for now.
(1/2) * 10^2 is (1/2) * 100 = 50
for the 20m/s ball it would be
(1/2) * 20^2 = 400 * 1/2 = 200
Once again, you see that it is 4x