Simple Machines part 2 lesson for 3rd grade unit. From Disney's Bill Nye the Science Guy. Levers, pulleys, and wheels. Also clips from Eureka!, a 1980 animated short series from Toronto. Music by Fulign
Shoe friction, needs to be taken account for. And about the book being pulled straight up vertically, that requires more power than to drag it up the side of the triangle. The force is being confused for power as the same, and those are not the same states either in real life or in an equation.
i love it im doing this for a project
kyileecheo 2 weeks ago
Shoe friction, needs to be taken account for. And about the book being pulled straight up vertically, that requires more power than to drag it up the side of the triangle. The force is being confused for power as the same, and those are not the same states either in real life or in an equation.
philsnk 7 months ago
@toldyouiwillgetcha
no. pulling it straight up covers very little distance yet going up a ramp covers a lot of distance, yet it reaches the same height.
cloud4an 7 months ago
i watched this in class
SockMonkeySociety 11 months ago
Same energy dist over longer time and dist means less direct force to the string
TwoHandsNY 11 months ago