Can the velocity of an object stop and reverse direction when its acceleration is constant? Explain with 100 words or less
Can the velocity of an object stop and reverse direction when its acceleration is constant? Explain...
FROBLEMS University Physics I Homework 2-1D Kinematics 1) Can an object with constant acceleration reverse its direction of movement? 2) Under what conditions is the average velocity of an object equal to the instantaneous velocity? From the top of a tall building, you throw a ball straight up with a speed vo and another ball straight down at the same time with the same speed (ignore air resistance) a) Which ball has the greater speed when it reaches the ground?...
An object starts from a stop, beginning to move in the positive direction at constant acceleration. It goes 6.7 m in 4.4 seconds. How fast (in m/s) is the object moving at the end of this time?
When an object moves in uniform circular motion, the direction of its acceleration is is directed toward the center of its circular path. depends on the speed of the object. in the opposite direction of its velocity vector. is directed away from the center of its circular path. in the same direction as its velocity vector
An object moving in the *x direction experience an acceleration of *2.0 m/s^2- This mean the object is increasing its velocity by 2.0 m/s every second. travels 2.0 m In every second. is traveling at 2.0 m/s. is decreasing its velocity by 2.0 m/s every second. Suppose that an object is moving with a constant velocity. Which statement concerning Its acceleration must be correct? The acceleration is constantly increasing. The acceleration is a constant non-zero value. The acceleration is constantly...
explain in words please
Consider an object moving with a constant positive acceleration. What does a graph of its velocity as a function of time look like? What does a graph of its position as a function of time look like?
An object is moving in the X-Y plane. At time t1 the direction of its velocity, v and acceleration, a are: Direction of v is in the positive X direction Direction of a is in the negative Y direction At time t1, the magnitude of the velocity of the object is _______. Select increasing, decreasing or constant. At time t1, the direction of the velocity of the object is _______. Select changing or not changing. At time t1, the direction...
An object is moving in the x direction only and its acceleration is given by a(t) =-7 m/s^5 t^3. If its initial velocity is 17 m/s in the x direction, what is the displacement of the object, in meters, when the object stops? Include a negative sign if the displacement is in the -x direction.
An object is moving in the X-Y plane. At time t_1 the direction of its velocity, v and acceleration, a are: Direction of v is in the negative X direction Direction of a is in the positive Y direction At time t_1, the magnitude of the velocity of the object is _____. Select increasing, decreasing or constant. A. increasing B. decreasing C. constant At time t, the direction of the velocity of the object is _____. Select changing or not...
with reason please.
Velocity and Acceleration Vectors An object is moving with an initial velocity along the x-axis and a constant acceleration in the second quadrant of the x-y plane as shown. Which one of the following statements about the subsequent motion of the object is true? (a) The velocity of the object never changes magnitude. (b) The velocity of the object never changes direction. (c) The direction of the velocity of the object is never the same as that...
PROBLEMS and QUESTIONS 1. An object moves across the floor and comes to a stop. Explain how Aristotle and Galileo would view this motion differently. 2. Explain the difference between speed and velocity and give examples of each. 3. Explain how an object can have a constant speed and a varying velocity. 4. What are the units of acceleration? 5. If an automobile travels at the rate of 40 miles per hour, how long will it take to travel 400...