Advertisements
Advertisements
प्रश्न
Give two examples to show that greater the mass, greater is the inertia of the body.
Advertisements
उत्तर
Examples to show that greater the mass, greater is the inertia of the body are as shown below:
(i) If you want to start a car by pushing it, you find that it takes a very large force to overcome its inertia. On the other hand, only a small force is needed to start a child's express wagon. The difference between the car and express wagon is the difference in mass. The car has a large mass, whereas the wagon has a small one.
(ii) A cricket ball is more massive than a tennis ball. The cricket ball acquires a much smaller velocity than a tennis ball when the two balls are pushed with equal force for the same time.
APPEARS IN
संबंधित प्रश्न
In the following example, try to identify the number of times the velocity of the ball changes:
“A football player kicks a football to another player of his team who kicks the football towards the goal. The goalkeeper of the opposite team collects the football and kicks it towards a player of his own team”.
Also identify the agent supplying the force in each case.
The mass of object A is 6 kg whereas that of another object B is 34 kg. Which of the two objects, A or B, has more inertia ?
Describe the term ‘inertia’ with respect to motion.
A water tanker filled up to `2/3` of its tank with water is running at a uniform speed. When the brakes are suddenly applied, the water in its tank would
The physical quantity which makes it easier to accelerate a small car than a large car is measured in the unit of :
What is Galileo's law of inertia?
Explain the following:
Why does dust fly off, when a carpet is hit with a stick?
Explain the following:
Why do fruits fall off the branches in the strong wind?
Passengers lean forward when a sudden brake is applied in a moving vehicle. This can be explained by ________.
A heavy truck and bike are moving with the same kinetic energy. If the mass of the truck is four times that of the bike, then calculate the ratio of their momenta. (Ratio of momenta = 2:1)
