9. Megha and Mansha were studying friction and decided to do an experiment. They placed four equally sized blocks made of different materials on an elevated pla

9. Megha and Mansha were studying friction and decided to do an experiment. They placed four equally sized blocks made of different materials on an elevated plastic tray. They watched the blocks move down the tray. Sponge Sandpaper Block Block Ice Block Plastic Block Plastic Tray Friction Experiment which block hold experience the least amount of friction as it moved down the tray​