Homework Statement
A 100g object is suspended from a spring. When 40g are added, the spring stretches an additional 5.0cm. With the total mass of 140g, the spring is set into vertical oscillations with an amplitude of 10 cm. (a) What is the force constant of the spring?
Homework...
The force upwards is 60N, the force downward is simply (5kg)(9.8m/s^2), or weight times gravity to give you force, since gravity is acting on the suitcase.
So, the upward force of 60N minus the downward force of 49N (from 5*9.8), and you get 11N in the positive upward direction.
ma = 11N
a =...
Homework Statement
An 1800kg car traveling north at 35 km/hr collides with an 1100kg car traveling east at 45km/hr. The cars stick together and skid to a stop (a) what is the velocity (speed and direction) of the two cars immediately after the collision? (b) How much kinetic energy is lost...
THANKS! I get it now... I now know where the problem is, I substituted T1 into the equation from t1+t2+t3=0... It should have worked though, if that equation is true... I used the T1 value from the T2cos40=T1cos30 to substitute into T1 now... Why didn't it work with the other equation? Does the...
Ok, so this is what happened, I got the answer from the board, but the steps were not given... So I know one of the answers.
Ive been trying to figure it out for a long time now... here's what I did.
T2Sin30+T1Sin40 = 196
T1 = T2 + 196
So, T2Sin30 + T2 Sin40 - 196 Sin40 = 196
T2 = 281.8 <<<...
Homework Statement
Hi, id like to know how to find the tensions in the diagram below.
I keep getting the wrong answer, the right answers are 181 and (i don't know the other)
How do I get the answers?
Homework Equations
T1+T2+T3=0
T3=mg
The Attempt at a Solution
I...
Homework Statement
Please read the WHOLE post before replying, because I don't want the answer, but how to obtain one of the equations.
A mountain-climbing technique called the "Tyrolean traverse," a rope is anchored on both ends (to rocks or strong trees) across a deep chasm, and then a...