2nd law of motion gives the definition of
A. force
B. acceleration
C. velocity
D. both force and acceleration
2nd law of motion gives the definition of Read More »
Physics
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
Newtons laws do not hold good for particles Read More »
Slope of velocity time graph is
A. acceleration
B. distance
C. force
D. momentum
Slope of velocity time graph is Read More »
Which law of motion is also called law of inertia ?
A. 1st law
B. 2nd law
C. 3rd law
D. all 1st, 2nd and 3rd laws
Which law of motion is also called law of inertia ? Read More »
When velocity time graph is a straight line parallel to time axis then
A. acceleration is const
B. acceleration is variable
C. acceleration is zero
D. velocity is zero
When velocity time graph is a straight line parallel to time axis then Read More »
A body is moving with uniform velocity. Its
A. speed changes
B. acceleration changes
C. direction of motion changes
D. displacement from origin changes
A body is moving with uniform velocity. Its Read More »
Why Ballistic missile fails in some circumstances of precision ?
A. due to their shape
B. due to air resistance
C. due to angle of projection
D. all of these
Why Ballistic missile fails in some circumstances of precision ? Read More »
Time rate of change of momentum is equal to
A. force
B. impulse
C. velocity
D. both A and C
Time rate of change of momentum is equal to Read More »
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
Flight of a rocket in the space is an example of Read More »