Find the Speed of Blocks A & B After Moving 2.70cm

In summary, block A (mass 2.20kg) connected by a horizontal cord to block B (mass 2.27kg) with a coefficient of kinetic friction of 0.344 is released from rest. The question asks for the speed of each block after moving 2.70cm. The confusion arises from the use of velocity, but it is a commonly used term in Physics problems and may be solved using energy methods, Newton's laws, or kinematic equations.
  • #1
TinaChan90
1
0
As shown in the figure , block A (mass 2.20kg ) rests on a tabletop. It is connected by a horizontal cord passing over a light, frictionless pulley to a hanging block B (mass 2.27kg ). The coefficient of kinetic friction between block A and the tabletop is 0.344.

problem.jpg


After the blocks are released from rest, find the speed of each block after moving 2.70cm
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Asking for V.

And I am so confused since we only only use V in circular motion, So I don't even know how to set it up
 
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  • #2
Are you familiar with energy methods, Newton's laws, and / or the kinematic equations?? The velocity or speed is used quite often in Physics problems, so surely you must have seen it other than in circ motion problems, is that right??
 

1. What is the formula for finding the speed of objects?

The formula for finding the speed of objects is speed = distance / time.

2. How do you determine the distance traveled by the objects?

In this scenario, the distance traveled is given as 2.70cm.

3. What is the unit of measurement for speed?

The unit of measurement for speed is typically meters per second (m/s), but it can also be expressed in other units such as kilometers per hour (km/h) or miles per hour (mph).

4. Can the speed of objects be negative?

Yes, the speed of objects can be negative if they are moving in the opposite direction of the chosen reference point. In this case, the negative sign indicates that the object is moving in the opposite direction.

5. How do you find the speed of two objects moving at different speeds?

To find the speed of two objects moving at different speeds, you would need to use the equation for the average speed of the objects, which is average speed = total distance / total time. This would give you the average speed of both objects combined.

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