Ok I was wondering if someone could help me with this problem I'm not sure how to set uo the problem in order to solve it using kinetic and potential energy. Thank you here's the question.
An 80.0-kg man jumps from a height of 2.50 m onto a platform mounted on springs. As the springs...
I did finish part a. I said that you for your help in reply #6. The answer was 31N and the reason i had gotten it wrong was because i forgot about the weight.
Ok for part b since i have the radius i found the circumference which is the total distance in one revolution. But how can i get the time. Or what would be the next step in solving the problem.
Ok I used the Phythagorean Theorem a^2+b^2=c^2: 1+b^2=1.25^2; b=.75. Them I found the angle within the triangle using Sine, which is opposite over hypotnuse. .75/1.25 and the take the inverse of sine. The angle i got was 53.1. I then set up the force in the y direction: T_1(the tension in the...
I think I see what you are saying but my problem is that I haven't completely gone through that yet. That is the next chapter. The chapter that is problem comes from is Applying Neton's Laws, but I'm stuck. Thanks for your help
On this problem I do thr freebody diagram but i can't determine how to find the angle for the lower cord. At first i though that the 2 tensions would be equal but aparently that is incorrect.
I'm sorry I didn't even notice that I missed the units.
Here is the problem again:
If the coefficient of kinetic friction between tires and dry pavement is 0.800, what is the shortest distance in which an automobile can be stopped by locking the brakes when traveling at 29.7m/s? Take the free...
Hello I really need help I hope someone can help me. Thank You in advance.
The problem reads.
The 4.00-kg block in the figure is attached to a vertical rod by means of two strings. When the system rotates about the axis of the rod, the strings are extended as shown in the diagram and the...