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Highest point (same instant on uphill and downhill figures) Uphill Downhill Acceleration in one dimension ech...
Mech HW-14 Acceleration in one dimension 3. Describe the motion of an object: a. for which...
Mech HW-14 Acceleration in one dimension 3. Describe the motion of an object: a. for which the direction of the acceleration is the same as the direction of motion of the object. b. for which the direction of the acceleration is oppo site to the direction of motion of the ob c. for which the change in velocity is zero. d. for which the initial velocity is zero but the acceleration is not zero. 4. Two carts roll toward each...
6. At some instant, the acceleration and velocity vectors for some object point in the same...
6. At some instant, the acceleration and velocity vectors for some object point in the same direction. a) What can you say about the object's speed at this instant? b) If these two vectors point in opposite directions, what can you say about the object's speed?
with reason please. Velocity and Acceleration Vectors An object is moving with an initial velocity along...
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...
D Question 8 1 pts Consider motion in one dimension. (The sign of the vector quantities...
D Question 8 1 pts Consider motion in one dimension. (The sign of the vector quantities is their direction indicator.) An object moves in the positive x-direction with speed 4.6 m/s for 4.1 s. It stops for 2.6 s and then accelerates with acceleration -7 m/s2 for 2.5 s What is the average velocity of this object in units of m/s? Enter a number with two digits behind the decimal point.
hello, I need help with this for a homework problem soon. this is just one question...
hello,
I need help with this for a homework problem soon. this is
just one question with multiple parts i'd greatly appreciate
it.
a) (5 pts) During free fall, after some object has been thrown upwards, the velocity momentarily goes to zero at the highest point in the trajectory. Some people (falsely) believe that the acceleration of the object also becomes zero at the highest point in the trajectory. Briefly explain what the motion of the object would look like...
Find the law of motion of a particle mass m and zero energy in one dimension...
Find the law of motion of a particle mass m and zero energy in
one dimension in the field U(x) = -Ax^(4) where A is a positive
constant. Given the inital position x0, compute how much time does
it take for the particle to escape to infinity if the vector of
initial velocity of the particle is pointing away from the origin
x=0. Describe the motion when the vector of inital velocity of the
particle is pointing toward x=0.
3....
Please choose all that are correct. Select one or more: O a. To maintain the same...
Please choose all that are correct. Select one or more: O a. To maintain the same acceleration, when the force applied is halved, mass must also be halved O b. If there is only one force acting on an object, that force is equal to the net force O c. A force cannot be negative O d. An object flying through vacuum does not have a normal force acting on O e. Friction is a fundamental force O f. An...
in which of the below cases does an object slow down: A. the velocity and acceleration...
in which of the below cases does an object slow down: A. the velocity and acceleration vectors point in opposite directions B. the acceleration is negative C. the slope in the velocity-vs-time graph is negative D. velocity and acceleration vector point in the same direction E. the acceleration is positive
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...
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...
Mech HW-14 Acceleration in one dimension 3. Describe the motion of an object: a. for which the direction of the acceleration is the same as the direction of motion of the object. b. for which the direction of the acceleration is oppo site to the direction of motion of the ob c. for which the change in velocity is zero. d. for which the initial velocity is zero but the acceleration is not zero. 4. Two carts roll toward each...
6. At some instant, the acceleration and velocity vectors for some object point in the same direction. a) What can you say about the object's speed at this instant? b) If these two vectors point in opposite directions, what can you say about the object's speed?
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...
D Question 8 1 pts Consider motion in one dimension. (The sign of the vector quantities is their direction indicator.) An object moves in the positive x-direction with speed 4.6 m/s for 4.1 s. It stops for 2.6 s and then accelerates with acceleration -7 m/s2 for 2.5 s What is the average velocity of this object in units of m/s? Enter a number with two digits behind the decimal point.
hello,
I need help with this for a homework problem soon. this is
just one question with multiple parts i'd greatly appreciate
it.
a) (5 pts) During free fall, after some object has been thrown upwards, the velocity momentarily goes to zero at the highest point in the trajectory. Some people (falsely) believe that the acceleration of the object also becomes zero at the highest point in the trajectory. Briefly explain what the motion of the object would look like...
Find the law of motion of a particle mass m and zero energy in
one dimension in the field U(x) = -Ax^(4) where A is a positive
constant. Given the inital position x0, compute how much time does
it take for the particle to escape to infinity if the vector of
initial velocity of the particle is pointing away from the origin
x=0. Describe the motion when the vector of inital velocity of the
particle is pointing toward x=0.
3....
Please choose all that are correct. Select one or more: O a. To maintain the same acceleration, when the force applied is halved, mass must also be halved O b. If there is only one force acting on an object, that force is equal to the net force O c. A force cannot be negative O d. An object flying through vacuum does not have a normal force acting on O e. Friction is a fundamental force O f. An...
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...
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...
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