Check for understanding - Wikispaces17+Oct+25.pdfCheck for understanding ... Resultant Equilibrant....
12
Check for understanding 25kg F A = 100N Find the net acceleration of the block if a frictional force of 50N is resisting motion F f = 50N
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Transcript of Check for understanding - Wikispaces17+Oct+25.pdfCheck for understanding ... Resultant Equilibrant....
Check for understanding
25kgFA = 100N
Find the net acceleration of the block if a frictional force of 50N is resisting motion
Ff = 50N
Check for understanding
A 2100N force causes an object to change its velocity from 10m/s to 25 /s in 5 seconds. Find the mass of the object.
Check for understanding
Draw the force vectors acting on the airplane flying level at a constant speed. Do consider friction!
HW P. 111 # 10 & 12 P. 115 #56
10. F = 312N12. a.) Fnet = 798N at 8.8o b.) a = 0.266 m/s256. F = 20N
QUIZMax time during class 15 min...
F
a
F
a
F
a
F
a
F
a
F
a
A B C
D E F
largest mass ___ ___ ___ ___ ___ ___ smallest mass
Ranking Task: Elevator moving downward
Greatest Least
ScaleWeight
Greatest Least
Ranking Task: Elevator moving upward
ScaleWeight
A street lamp weighs 150N. It is supported by two wires that form an angle of 120o with each other. The tension in the wires is equal.
a.) What is the tension in each wire supporting the light?
b.) If the angle between the wires is reduced to 90o, what is the new tension in the wires?
Find the tensions in cables A and B that have an 80o angle between them
A B
Resultant
Equilibrant
Inclined PlaneBlock NOT moving
Normal for
ce is
ALWAYS
perpendicu
lar
to the plan
e
