3 boys pulling at the end of 3 ropes held together on a knot. one boy pulls with a force of 20 Newton eastward, while a 2nd boy pulls with the same magnitude force northward. in what direction and with what force must a 3rd boy be
A charge q1 = 5 nC is located at the origin of xy copedinate system, and a charge of q2 = -2 nC is located on the y-axis at y =.30m. Find the components of the electric field and its magnitude and direction at a point P with
Jani is planning to go to Jojo's house, Jani has to walk 30m going east. Then, he will head to the north at a distance of 40 meters. Afterwards, he will walk 70m going west. 1. Determine the total distance travelled by Jani's. 2.
A woman at a point A on the shore of a circular lake with radius r=4 wants to arrive at the point C diametrically opposite A on the other side of the lake in the shortest possible time. She can walk at the rate of 10mph and row a
A scout troop is practicing its orientation skills with a map and compass. First they walk east for 1.2km. Next, they walk 45degrees west of north for 2.7km. In what direction must they walk to go directly back to their starting
A boy with a mass of 35.4 kg comes running up behind his stationary father, whose mass is 105.3 kg. If the boy’s velocity before the collision is 8.20 m/s eastward, and his father’s velocity after the collision is 3.10 m/s