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A force of 10 N is applied to an object, causing it to move 5 m in the direction of the force. Calculate the work done.

$$W = \Delta KE$$

First, we need to find the displacement of the object. Using the equation of motion, we get:

Now, we can calculate the work done:

An object of mass 2 kg is moving with a velocity of 4 m/s. A force of 5 N is applied in the opposite direction of motion, causing it to slow down. Calculate the work done by the force.