Describe what’s going on in position-time graphs 1 , 3, &5

Ineed extreme for task 2. my student number is 571721. many to whoever solves this correctly, im in debt to you.

Keneila is attempting to ski down a 20 m high friction free hill for the first time. she has a speed 10 m/s at the top. what is her kinetic energy when she is a the bottom, 20 m ? (a)2500 j (b)9800 j (c)12300 j (d)3100j (e)15000j

There are weak or strong attractive forces between atoms of liquids with a high viscosity