Can anyone help me on question 3?

Can anyone help me on number 3?

Let V and W be two objects on a straight track, both starting at the same position at time t=a. Let v(t) and w(t) describe their respective velocities at time t. 2. (a) Describe in one to three sentences what physical quantity is represented by abv(t)dt. (b) Describe in one to three sentences what physical quantity is represented by ab(v(t)w(t))dt. 3. Suppose we have the "start time" a=e/4, and velocities v(t)=tsin(log(t)) and w(t)=tcos(log(t)). (a) What is the earliest time T>a at which object V returns to its starting position? (b) What is the earliest time T>a at which object W returns to its starting position? (c) Calculate dTdaT(v(t)w(t))dt, where T>a. (d) In the scenario described in this question, the two objects begin by moving in the same direction, but one object moves more quickly. What maximum distance between the two objects is achieved before the distance between them starts to decrease? Explain your answer carefully. (e) Explain why both v(t)0 and w(t)0 as t. In physical terms, this means that, after a long time, objects V and W are barely moving at all. Does it follow that the objects have a predictable "long-term" location? Discuss