Can someone please verify if my reasoning is accurate?
I chose E) Planets B and D because they both have the same ratio of mass to radius which is the lowest of all the other planet options. Due to the fact that they have mass and radius evened out the gravitational pull will pull weight down...
I need help with understanding this problem. I had initially chosen B, that the two satellites had the same speed because the mass does not effect the velocities of each of the satellites considering they are in orbit. But that answer was marked incorrect by my instructor. What other answer...
53 rpm equals 5.55 rad/sec
multiply 5.55 by 2pi to get angular velocity of 34.8717
Is the answer 34.8717?
What should I have done to more accurately solve the problem with a better understanding?
What other steps should I take when solving similar problems?
and lastly,
Is the mass relevant...
Assuming zero spring mass and zero friction,
At the greatest value of x, the loss in gravitational potential energy should equal the loss in elastic potential energy.
so I did
(1/2)kx^2=mgx
to isolate x in the formula,
x=(2mg)/k
then I plugged in my values so:
(2*13.6*9.81)/8.8= 30.3218...
I tried the problem again using sin instead of cosine.
work done= force x distance moved in the direction of the force. The vertical height fallen is 3sin28
so work = change in gravitational potential energy = mgh = 4 x 9.81 x 3sin28 = 55J
does this seem more right than my previous answer?