In 2D, can the velocity point in a direction different than the direction of “instantaneous” displacement?
In 2D, can the velocity point in a direction different than the direction of “instantaneous” displacement?
Homework Answers
Direction of motion is always determined by the direction of instantaneous velocity so the velocity will point in the direction of displacement in a very small period. And the average velocity will point in the direction of displacement in a duration in which average velocity is to be calculated.
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In 2D, can the velocity point in a direction different than the
direction of “instantaneous” displacement?
A wave is passing through a string. What is the instantaneous displacement velocity of a point...
A wave is passing through a string. What is the instantaneous displacement velocity of a point on the string at x = 2m, t = 3s, if the displacement position of a point on the string is given by D(x, t) = (1m) cos (5m^-1)x − (6s^-1)t + 7?
4. Can you think of one or more ways to measure instantaneous velocity directly, or is...
4. Can you think of one or more ways to measure instantaneous velocity directly, or is an instantaneous velocity always a value that must be inferred from average velocity measurements?
Can someone explain Instantaneous velocity and instantaneous speed from graphs r(m) t(s) 1 2 3 4...
Can someone explain
Instantaneous velocity and instantaneous speed from graphs r(m) t(s) 1 2 3 4 5 678 What is the instantaneous speed of the puppy att 2s? Choose 1 answer:
The instantaneous center of zero velocity for the body is located at point IC (0.5 m,...
The instantaneous center of zero velocity for the body is located at point IC (0.5 m, 2 m). If the body has an angular velocity of 4 rad/s, as shown, determine the velocity of B with respect to A. 10. IC ω= 4 rad/s 0.5 m 1.5 m be 0.5 m 1.5 m
For link AB, identify the instantaneous center of zero velocity (IC) at this instant. How can...
For link AB, identify the instantaneous center of zero velocity (IC) at this instant. How can it be used to solve for angular velocity if VB is known? A 6 ft 3V2 it B
Find the bodys displacement and averafind the bodys displacement and average velocity for the...
a body moves on a coordinate line such that it has a position s=f(t)=t^2-8t+7 on the interval 0(greater than or equal to)t(greater than or equalto)9 with s in meters and t in secondsa)find the bodys displacement and average velocity for the given time intervalb)find the bodys speed and acceleration at the endpoints of the intervalc)when,if ever,during the interval does the body change direction?section 3.4
1. A particle with an electrical charge of 3.50 nC is traveling with an instantaneous velocity...
1. A particle with an electrical charge of 3.50 nC is traveling with an instantaneous velocity of 5.00 x 104m/s in the positive x-direction. The particle is in a region of uniform magnetic field of 0.0420 T in the negative z-direction. What is the magnetic force that acts on the particle at this instant?
answer all the above the car has an acceleration directed in the instantaneous direction of the...
answer all the above
the car has an acceleration directed in the instantaneous direction of the velocity vector. A ball is whirled on the end of a string in a horizontal circle at constant speed. Suddenly string breaks. Immediately after the string breaks, the ball will have a horizontal velocity away from the center of the circle have a horizontal velocity that is tangential to the circle. have a horizontal velocity toward the center of the circle. have a horizontal...
If there is a non-zero constant acceleration, which statement is false: a. The displacement will increase...
If there is a non-zero constant acceleration, which statement is false: a. The displacement will increase or decrease quadratically with time b. The displacement will increase or decrease linearly with time. c. The instantaneous velocity can be found knowing the time and initial velocity with time
Problem 3. A 2D velocity field for an incompressible Newtonian fluid is given by u 12xy-62.3,...
Problem 3. A 2D velocity field for an incompressible Newtonian fluid is given by u 12xy-62.3, u = 18x2y-4y3, where the velocity has unit m/s and x and y are in meters. (a) Determine the normal stresses ơzz and ơuy, and shear stress Try at the point x-1 m, y 1 m, where the pressure at this point is 6 kPa and dynamic viscosity is 1 Pa.s. (b) Sketch the magnitude and direction of the stress components.
4. Can you think of one or more ways to measure instantaneous velocity directly, or is an instantaneous velocity always a value that must be inferred from average velocity measurements?
Can someone explain
Instantaneous velocity and instantaneous speed from graphs r(m) t(s) 1 2 3 4 5 678 What is the instantaneous speed of the puppy att 2s? Choose 1 answer:
The instantaneous center of zero velocity for the body is located at point IC (0.5 m, 2 m). If the body has an angular velocity of 4 rad/s, as shown, determine the velocity of B with respect to A. 10. IC ω= 4 rad/s 0.5 m 1.5 m be 0.5 m 1.5 m
For link AB, identify the instantaneous center of zero velocity (IC) at this instant. How can it be used to solve for angular velocity if VB is known? A 6 ft 3V2 it B
answer all the above
the car has an acceleration directed in the instantaneous direction of the velocity vector. A ball is whirled on the end of a string in a horizontal circle at constant speed. Suddenly string breaks. Immediately after the string breaks, the ball will have a horizontal velocity away from the center of the circle have a horizontal velocity that is tangential to the circle. have a horizontal velocity toward the center of the circle. have a horizontal...
Problem 3. A 2D velocity field for an incompressible Newtonian fluid is given by u 12xy-62.3, u = 18x2y-4y3, where the velocity has unit m/s and x and y are in meters. (a) Determine the normal stresses ơzz and ơuy, and shear stress Try at the point x-1 m, y 1 m, where the pressure at this point is 6 kPa and dynamic viscosity is 1 Pa.s. (b) Sketch the magnitude and direction of the stress components.
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