can you please answer part a and b Section V. Forces and New s Second Liw (10 pt

Question

can you please answer part a and b

Section V. Forces and New s Second Liw (10 ptq. total) Three forces, given by Fi (4 3) N, F (-2i-30 N. and F i s4ON act on an otrie t mass of 4 kg to give it an acceleration. A. What is the direction of the acceleration? (5 pts B. What is the magnitude of the acceleratio of the object? (5 pts) Discussion exam outside the classroom is forbidden such discussion will be or distribution of this proteeted and may considered in violation of the JMU Honor Code test is also copyright not be online without the written permission of the professors of ISAT 152 posted

Explanation / Answer

Force in x direction ,

Fx = 4i - 2i + 7i = 9i

Force in y direction,

Fy = 3j - 3j + 4j = 4j

(a)

direction of force,

tan(theta) = Fy / Fx = 4 / 9 = 0.44

theta = 24 deg From +x axis

(b)

magnitude of force,

F = sqrt (Fx^2 + Fy^2)

F = sqrt (9^2 + 4^2)

F = 9.85 N

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