Do you want to test your understanding on linear momentum? Try answering these questions! But be careful: if the percentage of correct questions goes below 75%, you have to start over and have to wait 12 minutes to try it again. Ready for the challnge?

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1. Suppose a projectile is launched from a cannon. The motion of the projectile will be in two dimensions, along the x- and y- axes. What can be stated about the velocity of the projectile in each of the axes?