A. H=gT2/8
B. H=8T2/g
C. H=8g/T2
D. H=gT2
Motion and Force
3rd law of motion explains______________________?
A. effect of force
B. existence of a force
C. existence of two forces
D. existence of pair of forces in nature
The range of the projectile at 30 deg and 60 deg are__________________?
A. equal to 45 deg
B. equal to 90 deg
C. equal to each other
D. none of the above
Flight of a rocket in the space is an example of______________________?
A. second law of motion
B. third law of motion
C. first law of motion
D. law of gravitation
Momentum depends upon__________________?
A. force acts on the body
B. mass of the body
C. velocity of the body
D. both mass and velocity of the body
When collision between the bodies in a system is inelastic in nature then for system ____________________?
A. momentum changes but K.E remain conserve
B. K.E changes but momentum remain conserve
C. both momentum and K.E changes
D. both momentum and K.E remain conserve
Taking off rocket can be explained by __________________?
A. 1st law of motion
B. 2nd law of motion
C. Law of conservation of momentum
D. law of conservation of energy
At which angle the range of the projectile is maximum____________________?
A. 45
B. 60
C. 30
D. none
The distance covered by a body in time t starting from rest is__________________?
A. at2/2
B. Vt
C. a2t/2
D. at2
Inertia of an object is quantitative measure of its__________________?
A. volume
B. density
C. mass
D. temperature
