Discuss the below:
Q1. A 1.5 kg object moving along the x axis has a velocity of +4.0 m/s at x = 0. If the only force acting on this object is shown in the figure, what is the kinetic energy of the object at x = +3.0m?
Q2. If the vectors A and B have magnitudes of 10 and 11, respectively, and the scalar product of these two vectors is -100, what is the magnitude of the sum of these two vectors?
Q3. Two vectors A and B are given by A = 4i + 8j and B = 6i - 2j. The scalar product of A and third vector C is -16. The scalar product of B and C is +18. The z component of C is 0. What is the magnitude of C?