Why is Science Important? "The most incomprehensible thing about the world
is that - Einstein
AP Physics 1
Motion Plots A. K. A. Motion Diagrams
Velocity (speed and direction)
(seconds)
Answer: Speed = d/t
= [2∏(3.5m)]/8.9 sec
= 2.5 m/s
Average velocity for a single trip around the merry-go-round?
0 m/s
When the cars collide, total d = 400. m d = SpeedXtime 400.m = 35. m/s t + 15. m/s t 400 m = 50. m/s t t = 8.0 s
Photos made by
Eadweard Muybridge (1830- 1904) Public Domain
Total Time Speed = d/t
Speedxtime = d
time = d/Speed
time 1 = 250 km/[95 km/h] 2.6 hour time 2 - 1 hr time 3 = 250 km/[55 km/h] 4.5 hour Total t = 8.1 hours
Speed = 2(250 km)/8.1 hours
speed = 62 km/hr
[62 km/hr]
17 m/s
Ex 4) A cop riding 100 mph pursues a criminal travelling 85 mph. It takes the cop 15 minutes to catch up with the criminal. What distance, in miles, originally existed between the cop and the criminal when the pursuit originally began?
d = 15 mph x .25 hrs = 3.8 miles
©Tony Mangiacapre., St. Mary's H.S., Manhasset,
NY |
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