Honors Physics

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Honors Physics
Name________
Quarter 1 review test
Mr. Harwood
period____
Ch2 #1) A sports car moving at constant speed travels 100 m in 5.2 s. If it then brakes
and comes to a stop in 4.0 s, what is its acceleration? Express the answer in terms of g's,
where g = 9.80 m/s2. (Take the positive direction to be the direction of travel.)
Ch2 #2) A car is behind a truck going 21 m/s on the highway. The car's driver looks for
an opportunity to pass, guessing that his car can accelerate at 1.1 m/s2. He gauges that he
has to cover the 20 m length of the truck, plus 10 m clear room at the rear of the truck and
10 m more at the front of it.
a) How long will it take the car to pass the truck?
b) How far did the car travel during this time?
Ch3 # 1) A ball is thrown horizontally from the roof of a building 57 m tall and lands 35
m from the base. What was the ball's initial speed?
Ch3 # 2) An athlete executing a long jump leaves the ground at a 35° angle and travels
6.30 m.What was the takeoff speed?
Ch4 # 1) The carton shown in Fig. 4-55 lies on a plane tilted at an angle θ = 26.0° to the
horizontal, with µk = 0.17. Determine the acceleration of the carton as it slides down the
plane.
Figure 4-55
Ch4 # 2) Arlene is to walk across a high wire strung horizontally between two buildings
12.0 m apart. The sag in the rope when she is at the midpoint is 10.0°, as shown in Figure
4-42. If her mass is 52.0 kg, what is the tension in the rope at this point?
Figure 4-42
Ch5 # 1) Tarzan plans to cross a gorge by swinging in an arc from a hanging vine (Fig. 541). If his arms are capable of exerting a force of 1600 N on the rope, what is the
maximum speed he can tolerate at the lowest point of his swing? His mass is 80 kg and
the vine is 4.8 m long.
Figure 5-41
Ch5 # 2) How large must the coefficient of static friction be between the tires and the
road if a car is to round a level curve of radius 82 m at a speed of 92 km/h?
Chapter 4
Instructions: For problems 1-3,5, and 6 assume friction is present. For problems 2-3,
assume the object is moving in the direction it is being pushed.
1. For the picture shown to the right:
a. Draw an FBD for the object.
b. Draw a modified FBD for the object.
c. Show a net force equation for the forces in the line of
motion.
Fapp
2. For the picture shown to the right:
a. Draw an FBD for the object.
b. Draw a modified FBD for the object.
c. Show a net force equation for the forces in the line of
motion.
3. For the picture shown to the right:
a. Draw an FBD for the object.
b. Draw a modified FBD for the object.
c. Show a net force equation for the forces in the line of
motion.
Fapp
4. For the picture shown to the right:
a. Draw an FBD for m1
b. Draw an FBD for m2
c. Identify the positive direction of motion.
d. Show a net force equation for the forces in the line of motion.
2
1
5. For the picture shown to the right:
a. Draw an FBD for m.
b. Draw an FBD for B.
c. Identify the positive direction of
motion.
d. Show a net force equation for all
the forces in the line of motion.
6. For the picture shown to the right:
a. Draw an FBD for m
b. Draw an FBD for B
c. Draw a modified FBD for B
d. Identify the positive direction of
motion.
e. Show a net force equation for all the
forces in the line of motion.
B
m
B
m
7. For the picture shown to the right, the box dragged
in a 90° (Northward) direction across a frictionless
surface. Show the following:
a. Draw an FBD for the box.
b. Draw a modified FBD for the box.
(using x and y components)
c. Show a net force equation for the forces
in the x-direction.
d. Show a net force equation for the forces
in the y-direction.
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