Advertisements
Advertisements
प्रश्न
Name the law involved in the following situation :
if there were no friction and no air resistance, then a moving bicycle would go on moving for ever.
Advertisements
उत्तर
Newton’s first law of motion is involved .
APPEARS IN
संबंधित प्रश्न
State Newton’s first law of motion. Give two examples to illustrate Newton’s first law of motion.
The figure shows a light spring balance connected to two blocks of mass 20 kg each. The graduations in the balance measure the tension in the spring. (a) What is the reading of the balance? (b) Will the reading change if the balance is heavy, say 2.0 kg? (c) What will happen if the spring is light but the blocks have unequal masses?
A particle stays at rest as seen in a frame. We can conclude that
(a) the frame is inertial
(b) resultant force on the particle is zero
(c) the frame may be inertial but the resultant force on the particle is zero
(d) the frame may be non-inertial but there is a non-zero resultant force
State Newton's first law of motion.
The greater is the __________ the greater is the inertia of an object.
Name the different kinds of inertia an object can possess. Give an example of each.
Give two examples of the following:
Inertia of rest
If a 5 N and a 15 N forces are acting opposite to one another. Find the resultant force and the direction of action of the resultant force.
Newton's first law of motion describes ______.
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?
