A block is pulled across a table by a constant force of 9.20 N. If the mass of the block is 2.30kg, how fast will the block be moving after 2.00 seconds? Assume negligible friction.

Explanation:

From Newton's 2nd Law, we have . Using this, we can find the acceleration of the object:

.

Now that we've found the block's acceleration, we can use the following kinematics equation to find its final velocity after 2 seconds:

*Assumption: The block is initially at rest and has a initial velocity of zero. Otherwise, the question is unsolvable.

gravititional force is a force that is acting around you, it is non-contactable and it is a force that pulls you to the core of the earth.

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the minimum amperage that the current in this wire would have to have so that its weight is completely supported by the magnetic force due to earth's field, assuming that no other forces except gravity act on it