This is the exact question.
Ice Skating. You push your 50-kg friend across (frictionless) ice. The force of you on your friend is 20 N, and you push for 4 seconds. Hint: Determine the acceleration then use the “kinematics equations”, vf = vi + a(tf – ti) and xf = xi + vi(tf – ti) + 1/2a(tf-ti)²
a. How fast will your friend be going after 4 seconds?
b. How far will your friend travel during that time interval?
I don't even know what the x means
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bsc ch simple haonic motion numericals
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