Advertisements
Advertisements
Question
Name the different kinds of inertia an object can possess. Give an example of each.
Advertisements
Solution
An object possesses two kinds of inertia, the inertia of rest and inertia of motion. A book lying on a table will remain placed at the table unless it is displaced by some external force. This is an example of inertia of rest.
A ball rolling on the ground will continue to roll unless the external force, the force of friction between the ball and the ground stops it.
APPEARS IN
RELATED QUESTIONS
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.
Fill in the following blank with suitable word :
Newton’s first law of motion is also called Galileo’s law of ………………………
A particle is observed from two frames S1 and S2. Frame S2 moves with respect to S1with an acceleration a. Let F1 and F2 be the pseudo forces on the particle when seen from S1 and S2, respectively. Which of the following is not possible?
If you jump barefoot on a hard surface, your legs are injured. But they are not injured if you jump on a soft surface like sand or pillow. Why?
State and explain the law of inertia (or Newton's first law of motion).
Explain the following :
After alighting from a moving bus , one has to run for some distance in the direction of bus in order to avoid falling .
A man riding on a car has ___________ Inertia.
The masses of 10 kg and 20 kg, respectively, are connected by massless spring as shown in the figure. A force of 200 N acts on the 20 kg mass. At the instant shown, the 10 kg mass has acceleration of 12 m/s2. What is the acceleration of 20 kg mass?
(g = 10 m/s2)
What does inertia measure in an object?
An interstellar spacecraft, far away from the influence of any star or planet, is moving at high speed under the influence of fusion rockets (due to the thrust exerted by fusion rockets, the spacecraft is accelerating). Suddenly the engine malfunctions and stops. The spacecraft will ______.
