To get a resultant displacement of 10 m, two displacement vectors of magnitude 6 m and 8 m should be combined:
The velocity of a particle at an instant is 10 m/s and after 5 sec the velocity of particle is 20 m/s. The velocity 3 sec before in m/s is:
A ball is thrown upwards with a velocity of 100 m/s. It will reach the ground after:
Two projectiles are fired from the same point with the same speed at angles of projection 60° and 30° respectively. Which one of the following is true?
The ratio of numerical values of average velocity and average speed of a body is always:
If the average velocities of a body become equal to the instantaneous velocity, body is said to be moving with:
At the top of a trajectory of a projectile, the acceleration is:
At what angle the range of projectile becomes equal to the height of projectile?
If the dot product of two non-zero vectors vanish; the vectors will be:
