Chapter 5, Problem 28P

(a)

To determine

Magnitude and direction of $\left(\frac{d\left|\overrightarrow{p}\right|}{dt}\right)\widehat{p}$, and parallel component of $\frac{d\overrightarrow{p}}{dt}$ for the child.

(b)

To determine

The magnitude and direction of $\left|\overrightarrow{p}\right|\frac{d\widehat{p}}{dt}$, the perpendicular component of $\frac{d\overrightarrow{p}}{dt}$.

(c)

To determine

The magnitude and direction of net force acting on the child.

(d)

To determine

The objects in the surroundings contribute to the horizontal net force acting on the child.