m2a

Most popular questions and responses by m2a
  1. physics

    We consider a man of mass m = 85 kg as shown in the figure below using crutches. The crutches each make an angle of è = 26o with the vertical. Half of the person's weight is supported by the crutches, the other half is supported by the normal forces

    asked on September 27, 2009
  2. physics

    The figure below shows an object of mass M = 1,276 g. It is free to move along a horizontal, frictionless surface. This object is further connected to a second object with a mass of m = 1,362 g by means of a massless string that extends around a massless,

    asked on October 10, 2009
  3. physics

    A massless string runs around two massless, frictionless pulleys. An object with mass m = 20 kg hangs from one pulley. A force F is exerted on the free end of the string to lift the object at a constant speed by a distance of 2.3 m. What is the work done

    asked on November 16, 2009
  4. physics

    A pendulum consists of an object of mass m = 1.2 kg swinging on a massless string of length l = 259 cm. The object has a speed of 2.4 m/s when it passes through its lowest point. What is the greatest angle with the vertical that the string makes during the

    asked on November 16, 2009
  5. physics

    An object of mass M = 924 g is pushed at a constant speed up a frictionless inclined surface which forms an angle è = 50 degrees with the horizontal as shown in the figure below. What is the magnitude of the force that is exerted by the inclined surface

    asked on October 10, 2009
  6. physics

    An object of mass M = 924 g is pushed at a constant speed up a frictionless inclined surface which forms an angle è = 50 degrees with the horizontal as shown in the figure below. What is the magnitude of the force that is exerted by the inclined surface

    asked on October 10, 2009
  7. physics

    How long would it take for the Earth to complete a full turn if a person at 24.1° northern geographical latitude floats apparently weightlessly across the room? Use REarth = 6,375 km for the radius of Earth. Thank you

    asked on October 26, 2009
  1. physics

    Thank you

    posted on October 10, 2009
  2. physics

    I'm sorry I don't understand what you mean. I didn't do any name changes. You might be confusing me with someone else.

    posted on October 10, 2009