Phiwe drives 180 km to her grandmother’s house. She covers half the distance at 60 km/h and the other half at 100 km/h. On her return trip, she drives half the time at
60 km/h and the rest at 100 km/h.
Apply the problem solving strategy to answer the following questions. Scan and upload your
solutions as pdf or picture files.
(a) What is Phiwe’s average velocity on the way to her grandmother’s house?

Amass attached to a spring is displaced from its equilibrium position by 5cm and released. the system then oscillates in simple harmonic motion with a period of 1s. if that same mass–spring system is displaced from equilibrium by 10cm instead, what will its period be in this case? a mass attached to a spring is displaced from its equilibrium position by and released. the system then oscillates in simple harmonic motion with a period of . if that same mass–spring system is displaced from equilibrium by instead, what will its period be in this case? a) 0.5sb) 2sc) 1sd) 1.4s