Laws of Motion
Which of the following is a measure of inertia of a body?
Newton's first law of motion defines:
The rate of change of momentum of a body is directly proportional to the:
Action and reaction forces:
A bullet of mass 0.04 kg is fired from a gun of mass 20 kg. If the speed of the bullet is 300 m/s, the recoil speed of the gun is:
Coefficient of static friction ($\mu_s$), kinetic friction ($\mu_k$), and rolling friction ($\mu_r$) generally satisfy the relation:
The angle of friction ($\lambda$) and the angle of repose ($\theta$) are related as:
A force of 10 N acts on a body of mass 2 kg for 5 s. The change in momentum of the body is:
Why are roads banked on curves?
The maximum speed of a vehicle on a banked road of radius $r$ and banking angle $\theta$ with coefficient of friction $\mu$ is given by:
A block of mass 1 kg is placed on a rough horizontal surface with coefficient of friction $\mu = 0.5$. The maximum frictional force acting on the block is ($g = 10\text{ m/s}^2$):
Which of the following laws of motion can be called the real law of motion?
When a person jumps out of a moving boat, the boat moves backward. This is an illustration of:
The unit of force in the SI system is Newton, which is equivalent to:
A particle of mass $m$ is moving with a velocity $v$. Its momentum is:
Friction is a:
The apparent weight of a body in an elevator moving downwards with an acceleration $a$ ($a < g$) is:
The impulse of a force is equal to:
To prevent sliding while walking on ice, one should take smaller steps because:
If a constant force is applied on a body, it moves with a constant: