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(a) 2/7
(b) 2
No acceleration is towards the centre only in case of uniform circular motion.
Because bullet follow Parabolic trajectory under constant downward acceleration.
(i) Vertical straight line motion (ii) Parabolic path.
A sphere of radius ‘r’ is rolling without sliding. What is the ratio of rotational kinetic energy and total kinetic energy associated with sphere
(a) 2/7
(a) 2/7
See lessAn ant is walking on the horizontal surface. The number of degrees of freedom of ant will be
(b) 2
(b) 2
See lessIs the acceleration of a particle in circular motion not always towards the centre. Explain.
No acceleration is towards the centre only in case of uniform circular motion.
No acceleration is towards the centre only in case of uniform circular motion.
See lessA gunman always keep his gun slightly tilted above the line of sight while shooting. Why ?
Because bullet follow Parabolic trajectory under constant downward acceleration.
Because bullet follow Parabolic trajectory under constant downward acceleration.
See lessA person sitting in a train moving at constant velocity throws a ball vertically upwards. How will the ball appear to move to an observer. (i) Sitting inside the train (ii) Standing outside the train
(i) Vertical straight line motion (ii) Parabolic path.
(i) Vertical straight line motion
See less(ii) Parabolic path.