Physics, 07.10.2020 17:01 devoncruz23
11. Block A and block B move toward each other on a level frictionless track. Block A has mass m and
velocity +v. Block B has mass 2m and velocity -v. The blocks collide, and during the collision the
magnitude of the net force exerted on block A is F. What is the magnitude of the net force exerted
on block B, and why does it have that value?
a) 2F, because the mass of block B is twice that of block A and the blocks have
the same acceleration during the collision.
b) F/2, because the mass of block B is twice that of block A and the blocks have
the same acceleration during the collision.
c) F, because the blocks have the same speed immediately before the collision.
d) F, because the net force is equal to the mutual contact force between the
blocks.
Answers: 3
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On a horizontal frictionless surface, a small block with mass 0.200 kg has a collision with a block of mass 0.400 kg. immediately after the collision, the 0.200 kg block is moving at 12.0 m/s in the direction 30° north of east and the 0.400 kg block is moving at 11.2 m/s in the direction 53.1° south of east. use coordinates where the +x-axis is east and the +y-axis is north.(a) what is the total kinetic energy of the two blocks after the collision (in ) what is the x-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your ) what is the y-component of the total momentum of the two blocks after the collision? (indicate the direction with the sign of your answer.)
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11. Block A and block B move toward each other on a level frictionless track. Block A has mass m and...
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