Please answer the following, will give a thumbs up. Suppoue two fores are acting

Question

Please answer the following, will give a thumbs up.

Suppoue two fores are acting on a box, namely: F1 =-61-63 Fa-31-9 Find the "net" (i.e. "total") force on the box: net Now suppose you needed to apply a third force, F3, so that the box is experiencing no net force. Describe the force necessary to achieve this: Box 1: Enter your answer as a whole or decimal number. Examples: 3, -4, 5.5 Enter DNE for Does Not Exist, oo for Infinity Box 2: Enter your answer as a whole or decimal number. Examples: 3, -4, 5.5 Enter DNE for Does Not Exist, oo for Infinity Box 3: Enter your answer as a whole or decimal number. Examples: 3,-4, 5.5 Enter DNE for Does Not Exist, oo for Infinity Box 4: Enter your answer as a whole or decimal number. Examples: 3, -4, 5.5 Enter DNE for Does Not Exist, oo for Infinity

Explanation / Answer

F1 = -6i - 6j

F2 = 3i - 9j

Fnet = F1 + F2

= (-6i - 6j) + (3i - 9j)

= -3i - 15j

F3 must be equal in magnitude and opposite in direction to that of Fnet

So,

F3 = -Fnet

= - (-3i - 15j)

= 3i + 15 j

Answer:

Fnet = -3i - 15j

F3 = 3i + 15 j

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