Need help. Thank you! EXAMPLE 12.9 At any instant the horizontal position of the weather balloon...
The platform is rotating about the vertical axis such that at any instant its angular position is 0 (482) rad, where t is in seconds. A ball rolls outward along the radial groove so that its position is r = (0.17") m, where t is in seconds. (Figure 1) Figure < Re Part A Determine the magnitude of the velocity of the ball when t124 Express your answer to three significant figures and include the appropriate units. HA @ ?...
Q3 At a given instant, the merry-go-round is rotating with an angular velocity w = 20 rpm while the child is moving radially outward at a constant rate of 0.7 m/s. Assuming that the angular velocity of the merry-go- round remains constant, i.e.. = 0, determine the magnitudes of the speed and of the acceleration of the child when he is 0.8 m away from the spin axis. 04. Determine the magnitude of the ag and ag at the instant...
ints: 20 5) The horizontal coordinates of a FrisbeeM in a strong wind are given by 142 and y 10r-32, where r and y are in meters, and t is in seconds. (a) What is the acceleration of the Frisbee? Give from the positive x direction. (b) What is the magnitude of the velocity at 2.0 s, accurate to the nearest m/s? (c) Is there any instant(s) after the particle started moving (t > 0) where it could be at...
A particle moves along a circular path of radius 10 ft. If its position is 8 = 0.74 - 1 rad, where t, is in seconds, determine the magnitude of the particle's acceleration when 8 = 0.53 radians. Note that the magnitude is a scalar, if you were asked for acceleration you would need to give a vector Give answer to at least 3 decimal places jäl =
Need help with these conceptual questions, thank you.
6) You are studying the motion of a small ball thrown vertically upward. With the positive y- axis vertically downward, which of the graphs below best represents the velocity vs. time graph for the entire motion (up and down) of the ball? A B C is Trden t t t t t 0 7) The velocity and acceleration vectors for a particle executing circular motion are shown. In which direction is the...
EXAMPLE 16.5 The large window in Fig. 16-10 is opened using a hydraulic cylinder AB. If the cylinder extends at a constant rate of 0.5 m/s, determine the angular velocity and angular acceleration of the window at the instant 0 30° 1 m SOLUTION Position Coordinate Equation. The angular motion of the window can be obtained using the coordinate 0, whereas the extension or motion along the hydraulic cylinder is defined using a coordinate s, which measures its length from...
PRACTICE IT Use the worked example above to help you solve this problem. (a) Find the amplitude, frequency, and period of motion for an object vibrating at the end of a horizontal spring if the equation for its position as a function of time is the following. * = (0.235 m) cos( A = T = (b) Find the maximum magnitude of the velocity and acceleration. "max = m/s a max = m/s2 (c) What are the position, velocity, and...
please i need help asap Problem 1 The acceleration of a particle moving only on a horizontal xy plane is given by a=3ti+4tj, where a is in meters per seconds squared and t is in seconds, at t=0, the position vector r=(20.0m)i+(40.0m)j locates the particles, which then has the velocity vector v=(5.00m/s)i+(2.00m's)j. at t=4.00s, what are (a) its position vector in unit-vector notation and (b) the angle between its direction of travel and the positive direction of the x axis?...
Please include the concept and the law of the
question, thank you.
Problem# 1
Problem#1 Vectors A and B are shown in the figure. Vector C is given by C B A. The magnitude of vector A is 16.0 ft, and the magnitude of vector B is 7.00 ft. What is the magnitude and direction of vector C? Show the Vector C on the figure. 42.0 31.0 Problem#2 The velocity of an object is given by the expression v) 3.00...
The position of a particle moving along the x axis is given by x= 6.0.-1.0p, where x is in meters and ria seconds. What is the position of the particle when it achieves its maximum speed in the positive x direction? a. 32m b. 12m c. 16 m d. 24 m c. 2.0m 12. 13. The position of a particle moving along the x axis is given by x (21 +221-6.0)m, where t is in s. What is the average...