Recent content by jhrnndz1

I have another question, A 15.0 kg child is sitting on a plyground teeer-totter, 1.50m from the pivot. What force, applied 0.300m on the other side of the pivot, is need to make the cild lift off the ground? I got the Force to be 735.8N, is this correct?

I have another question, A 15.0 kg child is sitting on a plyground teeer-totter, 1.50m from the pivot. What force, applied 0.300m on the other side of the pivot, is need to make the cild lift off the ground? I got the Force to be 735.8N, is this correct?

Thanks Everyone! :)

Alright, I calculate each tension in both of the strings and calculated 3.14 and then 3.924. Can I add those two tensions together and use the equation torque = F*R? (7.1 * .087 = .61)?

There's a question that I'm having trouble with that I do not know exactly how to set up. Here it is... A 320g mass and a 400g mass are attached to the two ends of a string that goes over a pulley with a radius of 8.70 cm. Because of friciton, the pulley does not begin to rotate. What...

I have a quetion that I worked out and would love to know if I worked it out alright. Here it goes... A roller coaster of mass 80kg is moving with a speed of 20.0 m/s at position A with a height of 200m. There is no friction and g=10m/s^2. So basically there's a diagram of a...

So, for part A, would I first find the Wnc=-ukmgd, and then set that equal to change of KE + the change of PE?

Alright, I have another question that I want to make sure I did correct. The question is "an objec of mass m is at rest on a rough inclined plane with height h, length 8 m, and which makes an angle of 30degrees with the horizontal. The object is allowed to move and it stops on a rough horizontal...

Friction problem Alright, I have another question that I want to make sure I did correct. The question is "an objec of mass m is at rest on a rough inclined plane with height h, length 8 m, and which makes an angle of 30degrees with the horizontal. The object is allowed to move and it stops...

Thanks for your feedback!

Alright I'm having a little trouble with a question. The question is "there is a mass of 1.0 kg that is pushed against a spring with a spring constant of 25N/m. As a result, the spring is compressed by 20.cm. The mass is then released. What is the amount of work required to compress the...

Thanks so much for the help! :)

Was it correct the way i solved the question, except for the angle mistake?

Then i used the y=(vosintheta)t-1/2gt^2 to solve for time, which i got 1.4seconds, and then put that in the equation x=(v0costheta)t and calculated x=1.18meters

okay, so is it correct that the total height is 5m from the radius at the bottom of the ferris wheel, then 5msin30 + the base (1.75) = 9.25