• We need your support!

    We are currently struggling to cover the operational costs of Xtremepapers, as a result we might have to shut this website down. Please donate if we have helped you and help make a difference in other students' lives!
    Click here to Donate Now (View Announcement)

Physics: Post your doubts here!

Messages
155
Reaction score
27
Points
28
Driving force = ma = 1800 * 2 = 3600N


Moment due to weight = 0.1 * 10 * 9.81 = 9.81 clockwise
Moment due to pulley = 0.02*9.81*60 = 11.77 anti cw
difference is 1.962 anti cw, so we need 1.962 in cw direction, which we get by placing 50g on the 44cm mark.

Where'd you get the 10 from?
 
Messages
195
Reaction score
265
Points
73
There are 500 lines per mm so 500*10^3 lines per m. Their spacing is 1/500*10^3=2*10^6.
n λ=d sin θ so divide this d by the wavelength to get 3.33.
Hence there are 3 images on each side and 1 in the middle so 7 total.
 
Messages
3,355
Reaction score
20,175
Points
523
Someone plzz help me on this :) thanks in advance :)
Q9 and Q10... I didnt get it :/
image.jpg
This is a repeat qstn but i still didnt get it :/
image.jpg
Any quick way to calculate the energy except for counting boxes... Its time consuming...
image.jpg
image.jpg
I didnt get it.... Why isnt it C? I mean the gradient of I/V should be highest so that V/I should be lowest and R=V/I so R should be lowest...
image.jpg
image.jpg
 
Messages
140
Reaction score
396
Points
73
Someone plzz help me on this :) thanks in advance :)
Q9 and Q10... I didnt get it :/
View attachment 54905
This is a repeat qstn but i still didnt get it :/
View attachment 54906
Any quick way to calculate the energy except for counting boxes... Its time consuming...
View attachment 54907
View attachment 54909
I didnt get it.... Why isnt it C? I mean the gradient of I/V should be highest so that V/I should be lowest and R=V/I so R should be lowest...
View attachment 54910
View attachment 54911

20150609_160301.jpg
 
Messages
140
Reaction score
396
Points
73
Someone plzz help me on this :) thanks in advance :)
Q9 and Q10... I didnt get it :/
View attachment 54905
This is a repeat qstn but i still didnt get it :/
View attachment 54906
Any quick way to calculate the energy except for counting boxes... Its time consuming...
View attachment 54907
View attachment 54909
I didnt get it.... Why isnt it C? I mean the gradient of I/V should be highest so that V/I should be lowest and R=V/I so R should be lowest...
View attachment 54910
View attachment 54911
20150609_160204.jpg
 
Messages
1,229
Reaction score
740
Points
123
Force needs to be perpendicular to the pivot for maximum pivot. Draw a straight line from the center of the handle to the tip. F needs to be perpendicular to this line.
do u mean like this?? but pivot is the thing to which handle is attached, no? :
 

Attachments

  • Screen Shot 2015-06-09 at 3.17.21 PM.png
    Screen Shot 2015-06-09 at 3.17.21 PM.png
    51 KB · Views: 6
Top