Recent content by islanderman7

  1. I

    Calculate Angular Acceleration of Rotational Motion: 4.9rev in 1s

    Okay thanks. I get it now.
  2. I

    Calculate Angular Acceleration of Rotational Motion: 4.9rev in 1s

    Homework Statement A tire placed on a balancing machine in a service station starts from rest and turns through 4.9 revolutions in 1.0 s before reaching its final angular speed. Calculate its angular acceleration. I need my answer in rad/s^2 Homework Equations a=w/t 1rev= 2n rad...
  3. I

    Solving Work and Energy Questions: Skier of Mass 67kg

    Homework Statement A skier of mass 67 kg is pulled up a slope by a motor-driven cable. (a) How much work is required to pull him 40 m up a 30° slope (assumed frictionless) at a constant speed of 1.7 m/s? m= 67kg Delta y= 40m Theta= 30 degrees v= 1.7m/s Homework Equations I know...
  4. I

    Kinetic Energy Ping Pong ball Question

    Thank you Doc Al. The correct answer was 127m/s
  5. I

    Kinetic Energy Ping Pong ball Question

    [SOLVED] Kinetic Energy Question Homework Statement A 7.0 kg bowling ball moves at 2.35 m/s. How fast must a 2.40 g Ping-Pong ball move so that the two balls have the same kinetic energy? m1= 7.0kg v1= 2.35m/s m2= .0024kg v2=? Homework Equations I know that: KE= 1/2mv^2 The...