5. Two vectors of 5 N each act in opposite directions along the same straight line. Their resultant is

A. 0 N

✓

B. 5 N

C. 10 N

D. 25 N

📝 Explanation

Equal and opposite vectors cancel. Therefore (R=5-5=0) N.

📖 Additional Information

0 N
5 N
10 N
25 N

Equal and opposite vectors cancel. Therefore (R=5-5=0) N.

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4. A displacement of 20 m is directed entirely along the negative x-axis. Its rectangular components are

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6. A force of 10 N acts at 60° to the positive x-axis. Its x-component is

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August 7, 2026

46. Three displacement vectors have components ((4,3)) m ((6,-3)) m and ((-5,4)) m. The resultant components are

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47. For the vectors in Question 46 the magnitude of the resultant is

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48. Two vectors have components ((10,10)) N and ((-6,2)) N. The direction of their resultant relative to the positive x-axis is closest to

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49. A vector has components (V_x=Vcostheta) and (V_y=Vsintheta). If its angle changes from 30° to 60° without changing its magnitude which statement is correct?

August 7, 2026

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