Please somebody help me out here...... Consider the three dispacement vectors A= (3i -3j) m, B=(i-4j) m and C= (-2i + 5j) m. (the i's and j's should havehats on them couldn't figure out how to do it). Use the component method to determine (a) the magnitude and direction of the vector D = A + B + C (b) the magnitude and direction of E = -A - B + C Please somebody help me out here...... Consider the three dispacement vectors A= (3i -3j) m, B=(i-4j) m and C= (-2i + 5j) m. (the i's and j's should havehats on them couldn't figure out how to do it). Use the component method to determine (a) the magnitude and direction of the vector D = A + B + C (b) the magnitude and direction of E = -A - B + C
Explanation / Answer
X-component of D = X - component of A + X-component of B+ X-component of C = 3 + 1 -2 = 2 Y-component of D = Y - component of A + Y-componentof B + Y-component of C =-3 -4+5 = -2 So, Vector D = 2 i - 2 j So, magnitude of D = [ 4 + 4 ] = 2.828 m Let it makes an angle with X - axis then tan = -2 / 2 = -1 = -45 o Similarly you done next problem Similarly you done next problem