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NCAT - Practice Test - Physics - Vector and Equilibrium Quiz

Attempt 10 MCQs on NCAT - Practice Test - Physics - Vector and Equilibrium | Quiz 7

61. Two forces of 4 N east and 3 N north act on a particle. What third force will keep it in equilibrium?



62. What is the dot product of two parallel vectors of magnitudes A and B?



63. What is i × i?



64. What is the angle between two vectors that are anti-parallel?



65. A 20 kg block is suspended by two strings making angles 30° and 60° with horizontal. Find tension in the string at 60° to horizontal.



66. Rectangular components of a vector are:



67. The maximum and minimum resultants of two forces are 16 N and 8 N respectively. If their resultant is 4√7 N, find the angle between them.



68. The vector product of two vectors lies:



69. When is work done by a force maximum?



70. Which law states that the resultant of two vectors is given by the third side of a triangle?



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