Question about Dynamics: Mechanics Problems: Newton's Laws
Subject Physics
Physics
Source UNIOESTE
UNIOESTE
Topic Dynamics: Mechanics Problems: Newton's Laws
Dynamics: Mechanics Problems: Newton's Laws
Difficulty Medium
Medium
(UNIOESTE 2015) - Question Medium of Physics
Blocks A and B, with masses of 4.0 kg and 1.0 kg respectively, are connected by a string passing through pulleys as shown in the figure below. One end of the string is tied to a fixed nail on the horizontal surface. The blocks are released from rest. When friction and the masses of the string and pulleys are neglected, and the acceleration due to gravity is considered to be 10 m/s^2, mark the CORRECT alternative.
a.
the acceleration of block A is equal to 5.0.
b.
the acceleration of block B is equal to 2.5.
c.
the velocities of blocks A and B have the same value.
d.
after being released, the blocks will remain at rest.
e.
the tension force in the string has an intensity equal to 5.0 N.
Answer sheet:
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