The motor begins to vibrate and the driver reduces the speed to 40 km/hr for the rest of the trip.. The average speed for the entire trip is... If you come to rest in 7.5 s while traveli
Trang 1Chapter 002 Describing Motion
Multiple Choice Questions
meters The final speed of the auto is 60 meters/sec How long does it take the car to cover the
Trang 25 The following quantities relate to the rate of change of position Which pair will always have the same magnitude?
0.5 m in a time of 2.0 s The average speed of the ball is
0.5 m in a time of 2.0 s The acceleration of the ball is
km/hr The motor begins to vibrate and the driver reduces the speed to 40 km/hr for the rest of the trip The average speed for the entire trip is
Trang 310 Initially you are driving at 55 mi/hr If you come to rest in 7.5 s while traveling 450 ft, your average speed is
speedometer reading is 55 mi/hr Your speedometer reading is
Trang 4
16 If the braking distance for your car at a certain speed is 200 ft and, after reacting to a situation, you have managed to stop your car in 4.0 s, then the magnitude of the acceleration was
curve on the graph may be identified as
any point may be identified with
of the average velocity of the car
Trang 5
21 A car starts from rest and reaches 20 m/s in 10 seconds The average acceleration of the car in m/s2 is
motion One can get the
coasts up the hill, coming to rest in 4 seconds The average acceleration of the car while on the hill is
Trang 626 Two displacement vectors are added: one of length 2.0 m and one of length 3.0 m Not knowing the respective directions, we can say that the length of the sum of the vectors will be
speed of the body at time 25 seconds later?
car to come to a complete stop?
Trang 731 For the first hour a car is driven at a constant speed of 80 km/hr The motor begins to vibrate and the driver reduces the speed to 40 km/hr for another hour The average speed for the entire trip
Trang 835 The displacement of an object is shown in the graph above The graph shows
Trang 9
39 Refer to the graph above The velocity of this object at the start of the motion is
Trang 1042 Refer to diagram of billiard balls F, K, M, and T If billiard ball M is traveling straight upward at 2.5 m/sec, then
through the turn The radius of this turn is 1000 feet Which statement is true?
Refer to the diagram of Racetrack X
counterclockwise and at constant speed, then the maximum acceleration will take place where the turning radius is
Trang 1146 Refer to the diagram of Racetrack X It is for a racer to have uniform acceleration on this track
Fill in the Blank Questions
the same amount each second
accelerate at the same rate it will take another seconds to reach 45 m/s
6.0 seconds it has traveled _ m
hand makes a complete revolution Its average velocity over that time is _ cm/s
the _ from the slope of the curve
Trang 12
Chapter 002 Describing Motion Key
Multiple Choice Questions
meters The final speed of the auto is 60 meters/sec How long does it take the car to cover the 1200 meters?
Trang 135 The following quantities relate to the rate of change of position Which pair will always have
the same magnitude?
of 0.5 m in a time of 2.0 s The average speed of the ball is
of 0.5 m in a time of 2.0 s The acceleration of the ball is
km/hr The motor begins to vibrate and the driver reduces the speed to 40 km/hr for the rest of the trip The average speed for the entire trip is
Trang 1410 Initially you are driving at 55 mi/hr If you come to rest in 7.5 s while traveling 450 ft, your
speedometer reading is 55 mi/hr Your speedometer reading is
Trang 15
16 If the braking distance for your car at a certain speed is 200 ft and, after reacting to a situation,
you have managed to stop your car in 4.0 s, then the magnitude of the acceleration was
B 25 ft/s2
C.32 ft/s2
D.50 ft/s2
curve on the graph may be identified as
at any point may be identified with
magnitude of the average velocity of the car
Trang 16
21 A car starts from rest and reaches 20 m/s in 10 seconds The average acceleration of the car
motion One can get the
coasts up the hill, coming to rest in 4 seconds The average acceleration of the car while on the hill is
Trang 1726 Two displacement vectors are added: one of length 2.0 m and one of length 3.0 m Not
knowing the respective directions, we can say that the length of the sum of the vectors will be
may be identified with
the speed of the body at time 25 seconds later?
the car to come to a complete stop?
Trang 1831 For the first hour a car is driven at a constant speed of 80 km/hr The motor begins to vibrate
and the driver reduces the speed to 40 km/hr for another hour The average speed for the entire trip is
Trang 1935 The displacement of an object is shown in the graph above The graph shows
Trang 20
39 Refer to the graph above The velocity of this object at the start of the motion is
Trang 21
42 Refer to diagram of billiard balls F, K, M, and T If billiard ball M is traveling straight upward at
2.5 m/sec, then
through the turn The radius of this turn is 1000 feet Which statement is true?
Refer to the diagram of Racetrack X
track counterclockwise and at constant speed, then the maximum acceleration will take place where the turning radius is
Trang 2246 Refer to the diagram of Racetrack X It is for a racer to have uniform acceleration
on this track
Fill in the Blank Questions
the same amount each second
increase
accelerate at the same rate it will take another seconds to reach 45 m/s
5
the 6.0 seconds it has traveled _ m
72
the hand makes a complete revolution Its average velocity over that time is _ cm/s
get the _ from the slope of the curve
instantaneous acceleration