A block of mass 3.82 kg lies on a frictionless horizontal surface. The block is connected by a cord passing over a pulley to another block of mass 6.4 kg which hands in the air. Assume the cord to be light(massless and weightless) and unstretchable and the pulley to have no friction and no rotational inertia. Acceleration of gravity is 9.8 m/s^2. Calculate the acceleration of the first block? Calculate the tension in the cord answer in Newtons.
my teacher gave me an example with μ but this problem does not give us μ. I think you use this equation
(Mass2)(gravity)-ForceFriction= (masstotal)(acceleration)
Friction Force= μ (mass one)(gravity)
that is the equation i should have used except this problem does not give me μ please help.
2007-10-16 14:46:27 · 2 answers · asked by Anonymous in Science & Mathematics ➔ Physics
There is no friction in this problem. The mass lies on a frictionless surface.
The force = ma on the hanging weight accelerates the combined mass of both weights with a lesser acceleration.
2007-10-16 14:58:06 · answer #1 · answered by Computer Guy 7 · 0⤊ 0⤋
As there is friction nowhere, simply use μ = 0 in your equation and proceed.
2007-10-16 15:05:35 · answer #2 · answered by Pearlsawme 7 · 0⤊ 0⤋