Final Exam Review, part 1

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Final Exam Review, part 1
Wednesday, December 10
Quiz: λ=?, Amplitude=?, f=?
y(x)
8
6
4
2
0
0
-2
-4
-6
-8
5
10
15
20
25
3:64
• A quarterback passes the football downfield at
20 m/s. It leaves his hand 1.8 m above the
ground at an angle of 300 above the
horizontal. It is caught by the receiver exactly
the same height above the ground. How far
was the receiver from the passer?
• Greatest height of the ball?
5:26
• A 4000 kg truck is parked on a 150 slope.
What is the frictional force on the truck?
• Make a diagram
5:26
• diagram
N
f
150
w
f  W sin(15)  0
f  4000*9.8*sin(15)  10,146 N
N  W cos(15)  0
N  4000*9.8*cos(15)  37864 N
4:19
• A car has a maximum acceleration of 5.0m/s2.
What would be the maximum acceleration if
the car is towing another car of the same
mass?
5:49
• What thrust does a 200g model rocket need in
order to have a vertical acceleration of 10.0
m/s2?
6:15
• A 1500kg car drives around a flat 200-mdiameter circular track at 25m/s. What are
the magnitude and direction of the net force
on the car? What causes this force?
6:24
• The centers of a 10kg lead ball and a 100g
lead ball are separated by 10cm. What
gravitational force does each exert on the
other?
7:10
• What magnitude of F2 causes the net torque
on the rod to be zero?
F2
F1=20.0N
450
.5m
1m
7:15

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