Joseph is riding his bike at 10 kph the south. Maria is about 5 km behind him and traveling at 15 kph to the south. If they maintain constant velocities, will Maria catch up to Joseph? What is her relative velocity? HEL

Roger pushes a box on a 30° incline. if he applies a force of 60 newtons parallel to the incline and displaces the box 10 meters along the incline, how much work will he do on the box? a. 5.2 × 102 joules b. 6.0 × 102 joules c. -5.2 × 102 joules d. -6.0 × 102 joules