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.Management Sciences
Category: Motion and Force
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
Instantaneous and average velocities become equal when body___________________?
A. has zero acceleration
B. has uniform acceleration
C. has variable acceleration
D. moves in a circle
Newtons laws do not hold good for particles_______________?
A. at rest
B. moving slowly
C. move with high velocity
D. move with velocity comparable to velocity of light
Motorcycle safety helmet extends the time of collision hence decreasing the________________?
A. chance of collision
B. force acting
C. velocity
D. impulse
During long jump, athlete runs before taking the jump. By doing so he__________________?
A. provide him a larger inertia
B. decreases his inertia
C. decreases his momentum
D. increases his momentum
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