Wednesday

July 23, 2014

July 23, 2014

Posted by **please help:)** on Wednesday, March 28, 2012 at 12:43pm.

What is the distance between the point of first contact and the point where the block's speed is greatest?

- physics -
**Elena**, Wednesday, March 28, 2012 at 2:37pmPE =KE =PE (of the spring)

m•g•h = m•v^2/2=k•x^2/2,

h=d•sinα

m•g• d•sinα = k•x^2/2

d=k•x^2/2• m•g•sinα =

=421•(0.24)^2/2•4.6•9.8•sin31o=0.522 m.

The point where the speed is the greatest

is the same point where it was the first

contact with the spring.

**Related Questions**

intro to physics - In the figure, a block of mass m = 3.20 kg slides from rest a...

physics - A block of mass m = 3.20kg slides from rest a distance d down a ...

PHYSICS - A block of mass m = 3.20kg slides from rest a distance d down a ...

physics - A 0.50-kg block, starting at rest, slides down a 30.0° incline with ...

physics - A 0.50-kg block, starting at rest, slides down a 30.0° incline with ...

physics--urgent - A block of mass m = 3.20kg slides from rest a distance d down ...

physics please help :/ - A 0.50-kg block, starting at rest, slides down a 30.0° ...

Physics - A 4 kg block slides down a frictionless incline making an angle of 60...

physics - A physics student pulls a block of mass m = 23 kg up an incline at a ...

physics - A block of mass 0.22 kg can slide on a frictionless incline (Ø = 30º) ...