Advertisements
Advertisements
प्रश्न
When a carpet is beaten with a stick, dust comes out of it. Explain.
Advertisements
उत्तर
- The inertia of an object tends to resist any change in its state of rest or state of motion.
- When a carpet is beaten with a stick, then the carpet comes into motion. But the dust particles try to resist their state of rest.
- According to Newton’s first law of motion, the dust particles stay in a state of rest while the carpet moves. Hence, the dust particles come out of the carpet.
APPEARS IN
संबंधित प्रश्न
The driver of a three-wheeler moving with a speed of 36 km/h sees a child standing in the middle of the road and brings his vehicle to rest in 4.0 s just in time to save the child. What is the average retarding force on the vehicle? The mass of the three-wheeler is 400 kg and the mass of the driver is 65 kg.
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.
A block of mass 10 kg is suspended from two light spring balances, as shown in the following figure.

Three rigid rods are joined to form an equilateral triangle ABC of side 1 m. Three particles carrying charges 20 μC each are attached to the vertices of the triangle. The whole system is at rest in an inertial frame. The magnitude of the resultant force on the charged particle at A is.
A force of 600 dynes acts on a glass ball of mass 200 g for 12 s. If initially, the ball is at rest, find
- Final velocity
- Distance covered.
What do you mean by inertia of motion?
Give one example each of inertia of rest and inertia of motion.
A man riding on a car has ___________ Inertia.
Give two examples of the following:
Inertia of rest
Two blocks A and B of masses m and 2 m, respectively, are held at rest such that the spring is in natural length. Find out the accelerations of both the blocks just after release.

