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A 8.00kg block is sliding east at 5.00m/s on a horizontal, frictionless surface. It then undergoes...

A 8.00kg block is sliding east at 5.00m/s on a horizontal, frictionless surface. It then undergoes a collision with a 6.00kg block that was moving with an unknown initial velocity. After the collision, the 8.00kg block is moving north with a speed of 2m/s. Assuming the collision lasts for 40.0ms, a) Find the average force exerted on the 6.00kg block by the 8.00kg block.

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