Please help with both questions.

4. Suppose E has units of (kg metermeter secondsecond), P has units of (kg meter second), T has units of (second), V has units of ( meter second), and A has units of ( meter secondsecond). Examine the following equations and decide if they are dimensionally accurate. Make sure you provide an explanation for each. (a) E = P/T (b) 2PV = E (c) V = AT (d) E = P/A

Use sentences to describe the motion for the following graph (1 dimensional motion}. Make sure your description demonstrates your understanding of the meaning of the graph. For example, saying "the position is positive and then it goes negative\" is an extremely poor way to interpret the motion. Instead, try to say how you would tell someone to produce this graph by walking along a line. x (m) t (sec)