Recent content by medynamics

I apologize in advance for how long this post is. I'm a mediocre formatter.

The 20-kg sphere, attached to a spring of stiffness 500 N/m is released from an un-stretched position of the spring, as shown in the figure. Determine the velocity of the block “A” of mass 10 kg, at the instant the ball has fallen 25 cm. A roller mechanism keeps the spring in a vertical...

so using v = u + at: v = 1m/s + .1(5) v = 1.5 m/s now I need a. i believe i need to find radial and tangential a? so i have a = vdot so a_r = .1 m/s^2 but how do I get the acceleration that is based on the curve y = .5x^2?

I have to do these 2 problems for homework, but I can't figure them out. Any help would be appreciated. 1. The motorcycle is traveling at 1m/s when it is at A(the origin). If the speed is then increased at \dot{V} = .1 m/s^2, determine its speed and acceleration at the instant t = 5 seconds...