Study the following scenarios and identify what type of inertia tends to resist the change.
1. When the bus suddenly starts, the passenger on the bus tends to fall backwards.
2. When a passenger jumps out of a moving bus, he falls down.
3. A cyclist riding on a level road does not come to rest immediately even if he stops pedalling.
Study the following scenarios and identify what type of inertia tends to resist the change.
1. When the bus suddenly starts, the passenger on the bus tends to fall backwards.
2. When a passenger jumps out of a moving bus, he falls down.
3. A cyclist riding on a level road does not come to rest immediately even if he stops pedalling.
Only 1 is due to the inertia of rest and 
is due to the inertia of motion.
The correct option is C Only 1 is due to the inertia of rest and others are due to the inertia of motion.
The inertia of rest is the resistance of the body to change its state of rest to motion. The inertia of motion is the resistance of the body to change its state of motion to rest. In the first case when the bus starts suddenly, the passenger tends to fall backwards because the passenger’s body resists the change of state from rest to motion. Thus, it is inertia of rest. In the second case, when the passenger jumps out of the moving bus, he falls down because the passenger’s body resists the change in the state from motion to rest. Thus, it is inertia of motion. In third, when the pedalling was stopped, the cycle does not stop immediately because the cycle resists the change of state from motion to rest. Thus, it is due to the inertia of motion.
Only 1 is due to the inertia of rest and others are due to the inertia of motion.
The inertia of rest is the resistance of the body to change its state of rest to motion. The inertia of motion is the resistance of the body to change its state of motion to rest. In the first case when the bus starts suddenly, the passenger tends to fall backwards because the passenger’s body resists the change of state from rest to motion. Thus, it is inertia of rest. In the second case, when the passenger jumps out of the moving bus, he falls down because the passenger’s body resists the change in the state from motion to rest. Thus, it is inertia of motion. In third, when the pedalling was stopped, the cycle does not stop immediately because the cycle resists the change of state from motion to rest. Thus, it is due to the inertia of motion.
