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Two forces are such that the sum of their magnitude is 18 N and their resultant is perpendicular to the smallest force and magnitude of resultant is 12N

than the magnitude of forces are - 1)12N,6N. 2) 13 N,5N Questions 2 A lift is moving down with acceleration a.a man in the lift drops a ball inside the lift The acceleration of the ball as observed by the man in the lift and man standing stationary on the ground are respectively 1)g,g. 2)g-a,g-a, 3)g-a, g 4)a,g Plzz solve these problems Explain your answer with correct examination

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Q1) P and Q are two forces (vectors) inclined at an angle. Let Q be the smaller force. P + Q = 18 N R is the resultant force vector perpendicular to Q. and R = 12 Newtons The triangle made by P, Q and R vectors, is a right angle triangle with P as the diagonal and Q and R as sides. So P² = Q² + R² (18 - Q)² = Q² + 12² => Q =

=================== Q2)
given acceleration of lift = a downwards
Acceleration of the ball when it is released by the
man in the lift
= g - a
wrt the man inside the lift.
= g - 0 =
g wrt the man standing on the ground

When we are looking at velocity v1 or
acceleration a1 relative to
some other object having velocity v2 and
acceleration a2 , then the
relative velocity of relative acceleration of the first body wrt the second
body is = v1 - v2
and a1 - a2
respectively.
here these quantities are vectors...