minimum coefficient of friction must exist between the road and tires to prevent
ID: 1999174 • Letter: M
Question
minimum coefficient of friction must exist between the road and tires to prevent the car from slipping. (g = 9.8 m/s^2) 0.18 0.28 0.37 0.30 A bird, accelerating from rest at a constant rate, experiences a displacement of 28 m in 11 s. What is its acceleration? 0.21 m/s^2 0.64 m/s^2 0.46 m/s^2 0.78 m/s^2 Vector A is 3.0 units in length and points along the positive x-axis; vector B is 4.0 units in length and points along a direction 150 Degree from the positive x-axis. What is the direction of the resultant with respect to the positive x-axis?" 13 Degree 86 Degree 77 Degree 103 Degree Masses are distributed in the x, y-plane as follows: 6.0 kg at (0.0, 0.0) m, 4.0 kg at (2.0, 0.0) m, and 5.0 kg at (2.0, 3.0) m. What is the x-coordinate of the center of gravity of this system of masses?Explanation / Answer
here,
11)
A = 3 i units
B = 4 * ( cos(150) i + sin(150) j)
B = (- 3.46 i + 2 j ) units
the resultant , R = A + B
R = ( 3 i - 3.46 i + 2 j) units
R = ( - 0.46 i + 2 j) units
theta = arctan(2/0.46)
theta = 103 degree from +x axis
the angle is 103 degree from +x axis
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