Physics

A 300 g block on a 54.0 cm -long string swings in a circle on a horizontal, frictionless table at 85.0 rpm .

What is the speed of the block?
Express your answer with the appropriate units.

What is the tension in the string?
Express your answer with the appropriate units.

  1. 👍 0
  2. 👎 0
  3. 👁 240
asked by Chewy
  1. angular velocity=w= 85r/min*1min/60sec*2PIrad/rev
    = 85*2PI/60

    speed=angularvelocty*radius

    tension= mass*w^2*r

Respond to this Question

First Name

Your Response

Similar Questions

  1. Physics

    A 300 block on a 56 -long string swings in a circle on a horizontal, frictionless table at 65 .What is the speed of the block? What is the tension in the string?

    asked by Coco- circular motion on November 3, 2012
  2. Physics

    A 200 block on a 54 -long string swings in a circle on a horizontal, frictionless table at 90 A) What is the speed of the block? B) What is the tension in the string?

    asked by Elizabeth on October 3, 2012
  3. PHYSICS

    A 240 g block on a 41 cm-long string swings in a circle on a horizontal, frictionless table at 73 rpm. (a) What is the speed of the block? (b) What is the tension in the string?

    asked by Kate on July 7, 2011
  4. Physics

    A 220g block on a 54.0cm -long string swings in a circle on a horizontal, frictionless table at 70.0 rpm. A) What is the speed of the block? m/s B) What is the tension in the string? N

    asked by Jenny on February 28, 2013
  5. Physics

    A 220g block on a 54.0cm -long string swings in a circle on a horizontal, frictionless table at 70.0 rpm. A) What is the speed of the block? m/s B) What is the tension in the string? N

    asked by Jenny on February 28, 2013
  6. Physics

    A 700g block on a 130.0 cm long string (radius) swings in a circle on a horizontal frictionless surface. If the string will break when the tension exceeds 36.0 N, at what maximum rpm can the block rotate?

    asked by Anonymous on December 11, 2011
  7. Physics

    A 300 ball swings in a vertical circle at the end of a 1.2-m-long string. When the ball is at the bottom of the circle, the tension in the string is 13 . What is the speed of the ball at that point?

    asked by Dan on October 6, 2009
  8. PHYSICS

    A 10 g bullet is fired horizontally into a 1 kg block of wood hanging from a 1 m long string attached to the ceiling, getting stuck in the block. Due to the impact, the block then swings on the string to a maximum angle of 60

    asked by Anonymous on March 21, 2013
  9. Physics

    A 10 g bullet is fired horizontally into a 1 kg block of wood hanging from a 1 m long string attached to the ceiling, getting stuck in the block. Due to the impact, the block then swings on the string to a maximum angle of 60

    asked by Urgent pls help on March 18, 2013
  10. physics

    A 500 {\rm g} ball swings in a vertical circle at the end of a 1.5-m-long string. When the ball is at the bottom of the circle, the tension in the string is 14 {\rm N}.What is the speed of the ball at that point?

    asked by Atlantis on April 1, 2011

More Similar Questions