Recent content by b-pipe

Homework Statement The surface of an inclined plane shown below is frictionless. if F= 29N, what is the magnitude of the force exrted on the 3.0-kg by the 1.8kg block? Homework Equations I suppose F=MA The Attempt at a Solution I'm utterly confused here. The equation I have...

Oh, I see thanks.

Homework Statement A force acting on an object moving along the x-axis is given by Fx = 10x-2.0x2 N where x is in m. How much work is done by this force as the object moves from x = -1 to x= +6 Distance = 7 m Homework Equations Work = Force * Distance cosine theta The Attempt at a...

Hello again, I'm at a bit of a problem. When I intergrate the equation y= - 6/5x + 6, I get y = -3/5*x^2 + 6x. If I evaluate the resulting equation from 0 to 5 will the answer be the velocity?

Thank you very much.

I'm confused at what equation of velocity I should be integrating. Should it be the equation for the line of the graph I posted? Did I give the correct equation in my edit?

Yes, I am. In my calculus class we were taught that. So I should find the equation of the graph? I'm a bit rusty so please give me a minute. Edit: The equation of the line is y= - 6/5x + 6

Homework Statement At t=0, a particle is located at x=33m and has a velocity of 19 m/s in the positive X direction. The acceleration of the particle varies with time as shown in the diagram. What is the velocity of the particle at t=3.6s Diagram: Homework Equations I'm not sure...

Oh wow yes, it makes sense. Thank you.

The number line example really put it into perspective and you really hit the nail on the head with "appear motionless to the human eye" part because that's what I had in mind. But I'm confused about how we can measure the time between the point where the ball is traveling up at 0.002 m/s and...

Can you explain further? Because this kind of contradicts what Mephisto said. If there is a brief transition how can I find out the time lag?

Okay thanks.

Okay I may have used a wrong analogy. I throw a ball into the air, the ball reaches it's peak and starts to fall, What is the time between the ball reaching it's peak and the ball falling?

If a bird is in the air and for whatever reason it stops flapping it's wing, it'll fall back down. Is there a lag time between the stopping of the bird's wing and the fall? If there is, how long is it?