Choose the correct answer 1 If a 3i 4k and 6 6i 5j 2k then laxbl is 2 1 17 3 32 A particle experiences a force F kr f is the

Question

Choose the correct answer 1 If a 3i 4k and 6 6i 5j 2k then laxbl is 2 1 17 3 32 A particle experiences a force F kr f is the unit vector along position vector The dimensional formula of K is 1 MLT 3 M L T 2 27 4 37 2 ML T 2 4 ML T 3 Velocity time graph of a particle in straight line motion is in shape of a semicircle of radius R as shown in figure Average acceleration of particle from t 0 to t Ris V m s R t sec 4 5 1 Omanda 3 R m s A particle starts from origin at t 0 and moves in the x y plane with a constant acceleration a in the y direction The equation of motion is y kx Velocity component of particle along x direction is 1 Zero a 2k 2 1 m s 4 2R m s 3 3k Two projectiles A and B are projected with same speed at angles 15 and 75 respectively to the horizontal on ground Which of the following is correct 1 HA HB 2 HA HB 3 TA TB 4 Both 2 and 3 4

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