explain

Name: Est#: Lab Title: Date: Trouble: Hypothesis Purpose Theoretical framework Results: Analysis of the results: Conclusions: References: Science Format Annex (if any)Inertia Purpose: To illustrate the principle of inertia. Materials: Small glass glass. '- Deck card. - Five-cent coin. - Raw potato. - Kitchen knife. Procedure: 1.Fill the glass with water and place the card and coin on it, as illustrated below. . E ~ 2.Tp the card Wlth 0113 nger, 3.5 Shun U11 Lulu Plblmb. The coin should fall into the glass. 3. Insert the knife into the potato until the tip comes out on the other side of the potato. Hold the knife by the handle, so that the blade with the potato is pointing upwards. Tap the handle of the knife quickly on a solid table. The potato should be slid down the knife. Conclusion: Why does the coin fall into the glass instead of continuing with the deck card? Why does the potato slide by blade? Why does the potato slide down the knife