Oh my! Sorry! What a silly mistake I made.
It should be
tan(30) = F/5 (opposite/adjacent)
F = 5tan(30)
F = 2.89 (3 sig. fig.)
Therefore the force F is 28.9N
Am I understanding this correctly?
Thank you!
OH!
If I am understanding it correctly,
The vertical component of T2 is 50N
Therefore force F is at the base.
http://i.imgur.com/NCCD8Hy.jpg
Am I right to say:
Using a scale diagram, 1cm representing 10N
sin(30) = F/5
F = 5sin(30)
F= 2.5cm
Therefore, the reading of force F...
OH!
Am I right to say this:
If the timebase setting was 5 seconds per division and the terminal is moved quickly, I will see a trace that was lower initially and then a gradual slope upwards (positive gradient) then a constant horizontal line at its new higher trace reading.
Am I...
I have look through my textbook and for this question I am having weird answers. I believd I have not fully understand yet.
I have tried to identify all the forces.
http://i.imgur.com/HexCRVQ.jpg
Does this make sense? I made a bad calculation mistake on previous attempt
From what I...
Hi. Yes. It is exactly as worded.
I am sorry I forgot to typed the y-gain and time base into the question. I edited it on the front post now.
The y-gain is 2V per division, time base setting is 1.0ms per division.
I want to know if my understanding is correct. If I move the potential...
Homework Statement
This is a theoretical question that I do not quite fully understand. " An object moving up a 6m ramp to a height of 2m v.s vertically moving an object up 2m." Someone tell me the work done is the same for both scenario. How are they the same? Surely kinetic energy is...
Homework Statement
The figure shows 2 terminals M and N of a potential divider connected to a 6V battery. The circuit is connected to a Cathode-ray Oscillator.
http://i.imgur.com/zeV2e3j.jpg
The y-gain is 2V per division and timebase setting is 1.0ms per division.
(a) Describe in details...
Homework Statement
A 5.0kg mass is suspended from the ceiling. A horizontal force F is applied to hold the string in position as shown
http://i.imgur.com/ZdR72ff.jpg
Determine the reading of F on the spring balance by using a scale diagram
Homework Equations
None
The Attempt at...
Homework Statement
A ladder weighing 200N is being held by a man. The man shoulder acts as a pivot. His arm is pushing an upward force F.
http://i.imgur.com/dMrcRtK.jpg
Where could a weight of 150N be hang upon, so that force F do not need to counteract the weight of the ladder...
Hi everyone.
I am self studying for my GCE for the past 6 months now. I have been doing revision for a long time and did some question papers. I have a few problems and hope the people here can guide me. Thank you
Problem 1.
Homework Statement
A 5.0kg mass is suspended from the ceiling. A...