Recent content by Nithya115

I believe the height is 0.3m but when I do the calculations, I am still not getting the answer. Eg= (60kg)(0.3)(9.8) = 176.4 J

so... Eg=(80kg)(0.4m)(9.8) = 313.6 J Im still not getting the answer which is 240J. Can you please show your calculations? It would be really helpful!

Homework Statement Forty 2.0kg blocks 20.0cm thick are used to make a retaining wall in the backyard. Each row of the wall will contain 10 blocks. You may assume that the first block is placed at the reference level. How much gravitational potential energy is stored in the wall when the blocks...

Thanks. I rounded the kinetic force to 15 which I probably should avoid.

Homework Statement A string is tied to a 4.4 kg block and 120g hanging bucket. Students add 20g washers one at a time to the bucket. The student are unaware that the[/B] coefficient of static friction for the block on the table is 0.42. A) what is the maximum force of static friction for the...

a= m2g -Fs/ m1 + m2 a= (1.86 x 9.8) - 15/ (4.4 + 1.86) a= 0.52m/s^2I got Fs by... Fs = (0.34)(Fn=4.4x9.8) = 1.86 I got m2 by... 1. calculating the mass of the washers 20g x 87 washers = 1740g 2. adding the bucket and washers 120g + 1740g = 1860g 3. converted to kg 1860g/1000g=1.86 kg

ya there is a pulley between the bucket and the block. Basically, the block is sitting on the table and there is a pulley at the edge of the table. The bucket is hanging from the string that is on the pulley. its like the usual diagrams. I also did the same procedure but I am not getting that...

USE OF THE PHYSICS FORUMS TEMPLATE IS REQUIRED ON ALL HOMEWORK PROBLEMS. PLEASE COMPLY WITH THIS IN THE FUTURE. A string is tied to a 4.4 kg block and 120g hanging bucket. Students add 20g washers one at a time to the bucket. The student are unaware that the coefficient of static friction for...