Podcast
Questions and Answers
What happens to the mass of a body when its velocity is comparable to the velocity of light?
What happens to the mass of a body when its velocity is comparable to the velocity of light?
- It increases (correct)
- It becomes zero
- It remains the same as its rest mass
- It decreases
What is the condition for a system or a body to be in equilibrium?
What is the condition for a system or a body to be in equilibrium?
- The net force acting on it is zero (correct)
- The net force acting on it is minimum
- The net force acting on it is infinite
- The net force acting on it is maximum
What is the relationship between inertia and mass of a body?
What is the relationship between inertia and mass of a body?
- Inertia is directly proportional to the mass of the body (correct)
- Inertia is unrelated to the mass of the body
- Inertia is inversely proportional to the mass of the body
- Inertia is proportional to the velocity of the body
What is the consequence of a force acting on a body?
What is the consequence of a force acting on a body?
What is the result of placing a weight W in X Pan and a weight W1 in Y Pan in a physical balance?
What is the result of placing a weight W in X Pan and a weight W1 in Y Pan in a physical balance?
What is the primary reason why a person does not experience any jerk when the bus is in motion?
What is the primary reason why a person does not experience any jerk when the bus is in motion?
What is the main reason why the rider tends to fall backward when a horse starts suddenly?
What is the main reason why the rider tends to fall backward when a horse starts suddenly?
Why does a bullet fired on a window pane make a clean hole through it, while a ball breaks the whole window?
Why does a bullet fired on a window pane make a clean hole through it, while a ball breaks the whole window?
What is the reason why a stone tied to a string flies off along the tangent to the circle when the string breaks?
What is the reason why a stone tied to a string flies off along the tangent to the circle when the string breaks?
What is the inability of a body to change by itself its direction of motion?
What is the inability of a body to change by itself its direction of motion?
What is the effect of velocity on the length of a rod according to the special theory of relativity?
What is the effect of velocity on the length of a rod according to the special theory of relativity?
According to the special theory of relativity, what happens to the mass of a body as its velocity increases?
According to the special theory of relativity, what happens to the mass of a body as its velocity increases?
What is the effect of motion on the clock rate according to the special theory of relativity?
What is the effect of motion on the clock rate according to the special theory of relativity?
What is the condition for rotational equilibrium about a point 'O' in a physical balance?
What is the condition for rotational equilibrium about a point 'O' in a physical balance?
What type of balance is it when the masses of the pans are not equal?
What type of balance is it when the masses of the pans are not equal?
What is the force acting on a rope when a person climbs up or down with uniform speed?
What is the force acting on a rope when a person climbs up or down with uniform speed?
What is the acceleration of a body moving down a smooth inclined plane of length l, height h and having angle of inclination θ?
What is the acceleration of a body moving down a smooth inclined plane of length l, height h and having angle of inclination θ?
What is the velocity of a body at the bottom of an inclined plane?
What is the velocity of a body at the bottom of an inclined plane?
Where do action and reaction forces act?
Where do action and reaction forces act?
What is the result of a falling object not falling straight down?
What is the result of a falling object not falling straight down?
A block of mass m is accelerating on a smooth inclined plane. If the force acting on the block is F, what is the acceleration of the block?
A block of mass m is accelerating on a smooth inclined plane. If the force acting on the block is F, what is the acceleration of the block?
Two blocks, one of mass m1 and the other of mass m2, are connected by a massless string and are on a smooth horizontal surface. If the system is accelerating, what is the tension in the string between the blocks?
Two blocks, one of mass m1 and the other of mass m2, are connected by a massless string and are on a smooth horizontal surface. If the system is accelerating, what is the tension in the string between the blocks?
A massive pulley of mass M and radius R is rotating about its axis with an angular acceleration α. What is the net torque acting on the pulley?
A massive pulley of mass M and radius R is rotating about its axis with an angular acceleration α. What is the net torque acting on the pulley?
A string of mass M is stretched between two points. If the force applied to one end of the string is F, what is the acceleration of the block at the other end?
A string of mass M is stretched between two points. If the force applied to one end of the string is F, what is the acceleration of the block at the other end?
A block of mass m is attached to a horizontal, massless spring of spring constant k. If the block is displaced and then released, what is the acceleration of the block?
A block of mass m is attached to a horizontal, massless spring of spring constant k. If the block is displaced and then released, what is the acceleration of the block?
What is the primary characteristic of a body in equilibrium?
What is the primary characteristic of a body in equilibrium?
What is the relationship between the force applied to a body and its resulting acceleration?
What is the relationship between the force applied to a body and its resulting acceleration?
What is the unit of force in the CGS system?
What is the unit of force in the CGS system?
What is the consequence of a force acting on a body in terms of its momentum?
What is the consequence of a force acting on a body in terms of its momentum?
What is the direction of the force exerted by a rocket on its exhaust gases?
What is the direction of the force exerted by a rocket on its exhaust gases?
