What can we say about velocity under constant acceleration? (multiple answers are allowed) a. Has to...
What can we say about velocity under constant acceleration? (multiple answers are allowed)
| a. Has to point in the same direction as acceleration. |
| b. Must always be constant. |
| c. It could be increasing, decreasing, or staying constant. |
|
d. It could be positive negative or zero. |
Homework Answers
Option C is correct, it could be increasing, decreasing or staying constant ....
Case I : if acceleration is constant, velocity is increasing.
Case II : if deceleration (negative acceleration) is constant, velocity is decreasing.
Case III : at constantly zero acceleration, velocity is constant.
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What can we say about velocity under constant acceleration?
(multiple answers are allowed)
a. Has to...
An object moving in the *x direction experience an acceleration of *2.0 m/s^2- This mean the...
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...
What characterizes the velocity-vs-time graph of an object that is experiencing constant acceleration? A. The slope...
What characterizes the velocity-vs-time graph of an object that is experiencing constant acceleration? A. The slope of the graph is constant and non-zero. B. The graph is flat, with zero slope. C. The slope of the graph is positive, and increasing. D. The slope of the graph is negative, and increasing. E. The slope of the graph is negative, and decreasing. F. The slope of the graph is positive, and decreasing.
i need all answers please 6 pts A particle is moving in the positive x-direction under...
i need all answers please
6 pts A particle is moving in the positive x-direction under the influence of the force associated with the potential energy function shown below. What can you conclude about the force on the particle and its speed as it is going through point a in the x-axis? U The force is zero and the speed is decreasing. the force is in the positive x-direction and the speed is increasing. The force is in the negative...
The trajectory of an object is parabolic if its acceleration is A. constant in magnitude and...
The trajectory of an object is parabolic if its acceleration is A. constant in magnitude and always pointed toward the same point. B. constant in magnitude and always pointed in the same direction. C. decreasing in magnitude and always pointed toward the same point. D. zero
An object is moving in the X-Y plane. At time t_1 the direction of its velocity,...
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...
This is the position graph of a mass on a spring. What can you say about...
This is the position graph of a mass on a spring. What can you say about the velocity and the force at the instant indicated by the dotted line? a) Velocity is positive; force is zero b) Velocity is negative; force is zero c) Velocity is negative; force is to the right. d) Velocity is zero; force is to the right. e) Velocity is zero; force is to the left. A
c. It has tangential (linear) acceleration that points in the same direction as the velocity, and...
c. It has tangential (linear) acceleration that points in the same direction as the velocity, and a decreasing centripetal acceleration d. It has tangential (linear) acceleration that point opposite the velosity, and a constant centripetal acceleration QUESTION 3 A 53.5 kg parachutist jumps from an airplane and falls to Earth with a drag force proportional to the square of the speed, R-CV. Take C -0.220 kg/m (with the parachute closed) and C - 22.0 kg/m (with the chute open). What...
Shown below are various position-time, velocity-time and acceleration-time graphs. All of the graphs have numbered points...
Shown
below are various position-time, velocity-time and
acceleration-time graphs. All of the graphs have numbered points on
them. For these questions include only those points where the sign
of the quantity definitely has the value specified. Include all
points that apply in each case, if there are none specify none.
Shown below are various position--time, velocity--time and acceleration--time graphs. All of the graphs have numbered points on them. Answer the questions below about the numbered points. For these questions include...
this is one question with many parts, thanks for the help! A Imagine a negatively charged...
this is one question with many parts, thanks for the
help!
A Imagine a negatively charged particle, A approaching another negatively charged particle, B, along the path shown in the diagram. A moves from point X to point Y. These two particles form an isolated system, which means no work is done by external forces; therefore, the system's total energy does not change. A foelsan clectrical force (an repelling force) from B while it approaches B. Therefore, work is done...
A motorcycle has a constant acceleration of 4.45 m/s2. Both the velocity and acceleration of the...
A motorcycle has a constant acceleration of 4.45 m/s2. Both the velocity and acceleration of the motorcycle point in the same direction. How much time is required for the motorcycle to change its speed from (a)31.0 to 41.0 m/s, and (b)61.0 to 71.0 m/s?
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...
i need all answers please
6 pts A particle is moving in the positive x-direction under the influence of the force associated with the potential energy function shown below. What can you conclude about the force on the particle and its speed as it is going through point a in the x-axis? U The force is zero and the speed is decreasing. the force is in the positive x-direction and the speed is increasing. The force is in the negative...
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...
This is the position graph of a mass on a spring. What can you say about the velocity and the force at the instant indicated by the dotted line? a) Velocity is positive; force is zero b) Velocity is negative; force is zero c) Velocity is negative; force is to the right. d) Velocity is zero; force is to the right. e) Velocity is zero; force is to the left. A
c. It has tangential (linear) acceleration that points in the same direction as the velocity, and a decreasing centripetal acceleration d. It has tangential (linear) acceleration that point opposite the velosity, and a constant centripetal acceleration QUESTION 3 A 53.5 kg parachutist jumps from an airplane and falls to Earth with a drag force proportional to the square of the speed, R-CV. Take C -0.220 kg/m (with the parachute closed) and C - 22.0 kg/m (with the chute open). What...
Shown
below are various position-time, velocity-time and
acceleration-time graphs. All of the graphs have numbered points on
them. For these questions include only those points where the sign
of the quantity definitely has the value specified. Include all
points that apply in each case, if there are none specify none.
Shown below are various position--time, velocity--time and acceleration--time graphs. All of the graphs have numbered points on them. Answer the questions below about the numbered points. For these questions include...
this is one question with many parts, thanks for the
help!
A Imagine a negatively charged particle, A approaching another negatively charged particle, B, along the path shown in the diagram. A moves from point X to point Y. These two particles form an isolated system, which means no work is done by external forces; therefore, the system's total energy does not change. A foelsan clectrical force (an repelling force) from B while it approaches B. Therefore, work is done...
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