PHYS 101 Lecture 7: Module 3 Continued

• School: McGill University
• Department: Physics
• Course: PHYS 101
• Professor: Kenneth J Ragan

Document Summary

2. as before, a ship fires two shells simultaneously as shown below; the two shells are fired at the same same same same initial speed initial speed initial speed initial speed. which ship gets its mail first? . Summary: dynamics: why things move, newton"s first law and inertia" inertial and non-inertial frames, newton"s second law: f = ma mass vs weight, newton"s third law: action and reaction. Or: - to make it move differently from how it"s moving now. (pushing is not pulling)----> . Real-world example: you turn off the engine in your car at 110 km/h, and you glide to a stop. it appears force (from the . Is: - a push or a pull, necessary to get something moving. So, force has both a magnitude (a nudge is different than a shove) and a direction. Wet ice is a very low-friction system. so your car obeyed the 1st law, and with no outside.