(A) 18 Degree
(B) 45 Degree
(C) 90 Degree
(D) 120 Degree
Author:
The total time for which projectile remains in air is called?
(A) Time of projectile
(B) Time period
(C) Time of flight
(D) Time constant
When the projectile reaches the highest point of trajectory. The vertical component of velocity becomes?
(A) Zero
(B) Maximum
(C) Minimum
(D) Infinity
A body thrown upward making a certain angle with horizontal and moving freely under the action of gravity is called?
(A) Satellite
(B) Rocket
(C) Projectile
(D) Spaceship
Which shows correct relation between H and T of projectile?
(A) H=gT2/8
(B) H=8/gT2
(C) H=8g/T2
(D) None of the above
Which among the following is a vector quantity?
(A) Velocity
(B) Potential energy
(C) Work
(D) All above are vector quantities
Which among the following is a scalar quantity?
(A) Force
(B) Speed
(C) Acceleration
(D) Velocity
A snooker ball moving with velocity v collides head on with another snooker ball of same mass at rest. If the collision is elastic the velocity of second snooker ball is?
(A) Zero
(B) V
(C) 2V
(D) Infinitely