A bird flies 4.0 meters due north in 2.0 seconds and then flies 2.0 meters due west in 1.0 seconds. What is the bird's average speed?
If a car is travelling due south with a decreasing speed, then the direction of the car's acceleration is
A hiker travels 60 meters north and then 120 meters south. What is her resultant displacement?
If the average speed of a plane is 500 km per hour, how long will it take to fly 125 km?
Applying the brakes to a car traveling at 45 km/h provides an acceleration of 5.0 m/s2 in the opposite direction. How long will it take the car to stop?
A ball rolls down a frictionless inclined plane with a uniform acceleration of 1.0 m/s2 . If its velocity at some instant of time is 10 m/s, what will be its velocity 5.0 seconds later?
A ball rolls down a frictionless inclined plane with a uniform acceleration of 1.0 m/s2 . If its initial velocity is 1.00 m/s, how far will it travel in 10 s?
A body with an initial speed of 25 m/s accelerates uniformly for 10 seconds to a final speed of 75 m/s. What is the acceleration?
2 2 2 2
A body initially at rest is accelerated at 5 m/s2 for 10 seconds. What is its final velocity?
Which graph represents the motion of a body starting from rest and moving with a constant non-zero acceleration?
The speeds of a body at the ends of five successive seconds are: 180, 360, 540, 720, 900 m/h. What is the acceleration of the body?
2 2 2 2
"An object is initially at rest then moves in a straight line and accelerates uniformly at a rate of 2.00 m/s2 ."
After the object has been in motion for four seconds, its speed would be ___ m/s.
"An object is initially at rest then moves in a straight line and accelerates uniformly at a rate of 2.00 m/s2 ."
The distance traveled by the object during the first five seconds of its travel was ___ m.
"An object is initially at rest then moves in a straight line and accelerates uniformly at a rate of 2.00 m/s2 ."
The average speed of the object during the first six seconds of its travel was ___ m/s.
"An object is initially at rest then moves in a straight line and accelerates uniformly at a rate of 2.00 m/s2 ."
The average speed of the object during the third second of its motion was ___ m/s.
"An object is initially at rest then moves in a straight line and accelerates uniformly at a rate of 2.00 m/s2 ."
The distance traveled by the object during the fourth second of its travel was ___ m.
"An object of mass m initially at rest experiences a constant acceleration of magnitude ao . After a time interval to has elapsed, the speed of the car is vo and it has traveled a distance do ."
After a total time 3 to has elapsed, the speed of the object will be vo x ___.
"An object of mass m initially at rest experiences a constant acceleration of magnitude ao . After a time interval to has elapsed, the speed of the car is vo and it has traveled a distance do ."
After a total time 2 to has elapsed, the distance traveled by the object will be do x ___.
"Six different objects are observed to move in a straight line. Some aspect of the motion of each of the six objects is plotted as a function of time in the following graphs."
Which graph(s) represent(s) a situation in which the object moved with a constant nonzero acceleration?
"Six different objects are observed to move in a straight line. Some aspect of the motion of each of the six objects is plotted as a function of time in the following graphs."
Which graph represents a situation in which the object moved with a constant zero acceleration?
Graph A Graph B Graph C Graph D Graph E Graph F
"An object is observed to move in a straight line. Some aspect of the motion of this object is plotted as a function of time in the following graph."
The slope of the dashed line in the graph above represents ___.
"An object is observed to move in a straight line. Some aspect of the motion of this object is plotted as a function of time in the following graph."
The slope of the dashed line in the graph above represents ____.
"An object is observed to move in a straight line. Some aspect of the motion of this object is plotted as a function of time in the following graph."
The shaded area in the graph above represents ___.
"An object is observed to move in a straight line. Some aspect of the motion of this object is plotted as a function of time in the following graph."
The shaded area in the graph above represents ___.
"The speed of an object moving in a straight line changes with time as in the figure below."
For which of the time intervals was the average speed of the object greatest?
"The speed of an object moving in a straight line changes with time as in the figure below."
During which time interval did the object travel with a constant nonzero acceleration?
"The speed of an object moving in a straight line changes with time as in the figure below."
During which time interval was the average speed least?
"The speed of an object moving in a straight line changes with time as in the figure below."
During which time interval did the maximum value of the magnitude of the instantaneous acceleration occur?
"The speed of an object moving in a straight line changes with time as in the figure below."
During which time interval was the speed of the object constant?
"The speed of an object moving in a straight line changes with time as in the figure below."
During which time interval did the minimum value of the instantaneous speed occur?
"The speed of an object moving in a straight line changes with time as in the figure below."
During which time interval was the magnitude of the average acceleration greatest?
"The speed of an object moving in a straight line changes with time as in the figure below."
During which time interval was the magnitude of the average acceleration least?
"For this question, assume that g = 10.00 m/s2 . A small stone originally at rest is dropped over the edge of a very tall building."
During the fourth second of the fall, the speed of the stone changes ___ m/s.
"For this question, assume that g = 10.00 m/s2 . A small stone originally at rest is dropped over the edge of a very tall building."
During the second second of fall, the average speed of the stone is ___ m/s.
"For this question, assume that g = 10.00 m/s2 . A small stone originally at rest is dropped over the edge of a very tall building."
During the first second of fall, the stone falls a distance of ___ m.
"For this question, assume that g = 10.00 m/s2 . One reaches out over the edge of a tall building and throws a stone straight up with an initial speed of 20.00 m/s."
The change in speed of the stone during the first second of its motion is ___ the change in its speed during the third second of its motion.
"For this question, assume that g = 10.00 m/s2 . One reaches out over the edge of a tall building and throws a stone straight up with an initial speed of 20.00 m/s."
The distance traveled by the stone during the 1st second is ___ the distance traveled by the stone during the 2nd second.
"For this question, assume that g = 10.00 m/s2 . One reaches out over the edge of a tall building and throws a stone straight up with an initial speed of 20.00 m/s."
At the instant the stone is at its maximum altitude, the acceleration of the stone is ___.
2 upward2 horizontal2 downward
"For this question, assume that g = 10.00 m/s2 . One reaches out over the edge of a tall building and throws a stone straight up with an initial speed of 20.00 m/s."
The time required for the stone to reach its maximum altitude is ___ sec.
