Advertisements
Advertisements
प्रश्न
A mass of 2 kg is suspended with thread AB (Figure). Thread CD of the same type is attached to the other end of 2 kg mass. Lower thread is pulled gradually, harder and harder in the downward directon so as to apply force on AB. Which of the threads will break and why?
उत्तर
The thread AB will break earlier than the thread CD. This is because forces acting on thread CD = applied force and force acting on thread AB = (applied force + weight of 2 kg mass). Hence, the force acting on thread AB is larger than the force acting on thread CD.
APPEARS IN
संबंधित प्रश्न
Give the magnitude and direction of the net force acting on a drop of rain falling down with a constant speed.
If the speed of the stone is increased beyond the maximum permissible value, and the string breaks suddenly, which of the following correctly describes the trajectory of the stone after the string breaks?
In an imaginary atmosphere, the air exerts a small force F on any particle in the direction of the particle's motion. A particle of mass m projected upward takes time t1 in reaching the maximum height and t2 in the return journey to the original point. Then.
The force exerted by the floor of an elevator on the foot of a person is more than the weight of the person if the elevator is
(a) going up and slowing down
(b) going up and speeding up
(c) going down and slowing down
(d) going down and speeding up
A block of 2 kg is suspended from a ceiling by a massless spring of spring constant k = 100 N/m. What is the elongation of the spring? If another 1 kg is added to the block, what would be the further elongation?
Derive the relation between newton and dyne.
The amount of inertia of a body depends on its _________.
Give two examples of the following:
Inertia of rest
Classify the types of force based on their application.
Newton's first law of motion describes ______.
