Q. A hiker makes four straight-line walks A 13 km at 147? B 17 km at 13? C 33 km at 96? D 21 km at 197? in random directions and lengths starting at position (41 km, 41 km). Which vector will return the hiker to the starting point? All angles are measured in a counter-clockwise direction from the positive x-axis.
Q. A dragster starts from rest and accelerates down a track. Each tire has a radius of 0.320 m and rolls without slipping. At a distance of 365 m, the angular speed of the wheels is 292 rad/s. Determine (a) the linear speed of the dragster and (b) the magnitude of the angular acceleration of its wheels.