Forces 12.1 Pg 356-362. FORCE:. A push or a pull that acts on an object Can cause a resting object to move, or it can accelerate a moving object by changing the object’s speed or direction. FORCE:. Unit of force: Newton (N)
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Gravity
Air Resistance
Terminal velocity of a skydiver is approximately 195 km/h (122 mph or 54 m/s)
Gravity
Air Resistance
Both marbles fall at the same rate even if one is also moving forward
t = √2(h) t = √2(9m) t = √18m = √1.836734694s2 = 1.4s
9.8m/s2 9.8m/s2 9.8m/s2
v = d v = 2.5m v = 1.8 m/s
t 1.4s
2.5m