Class 9 Exam > Class 9 Questions > A motor bike accelerates on the horizontal ro...
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A motor bike accelerates on the horizontal road due to the force exerted by :
- a)the engine of motorbike
- b)the earth
- c)the driver on the motorbike
- d)none of the above.
Correct answer is option 'B'. Can you explain this answer?
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Most Upvoted Answer
A motor bike accelerates on the horizontal road due to the force exert...
Explanation:
When a motor bike accelerates on the horizontal road, it is due to the force exerted by the Earth. This force is known as the force of friction which acts between the road and the tires of the motor bike. The force of friction is a contact force and it always acts in a direction that opposes the motion of the body. In the case of a motor bike, the force of friction acts in the forward direction, opposite to the direction of the force applied by the engine of the motor bike.
Factors affecting the force of friction:
The force of friction depends upon the following factors:
- Nature of the surfaces in contact
- The force pressing the two surfaces together
- The area of contact between the two surfaces
Types of friction:
There are three types of friction:
- Static friction: It is the force of friction that prevents an object from moving when a force is applied to it.
- Kinetic friction: It is the force of friction that opposes the motion of an object when it is in motion.
- Rolling friction: It is the force of friction that acts between the surfaces of two objects that are rolling over each other.
Importance of friction:
Friction is an important force in our daily lives. It helps us to walk on the ground, drive a car, ride a bike, and play sports like soccer and basketball. Without friction, we would not be able to hold objects or move them around. It is also the reason why we can write with a pen or pencil.
Conclusion:
In conclusion, the force of friction exerted by the Earth is the reason for the acceleration of a motor bike on a horizontal road. It is an important force in our daily lives and helps us to perform various activities.
When a motor bike accelerates on the horizontal road, it is due to the force exerted by the Earth. This force is known as the force of friction which acts between the road and the tires of the motor bike. The force of friction is a contact force and it always acts in a direction that opposes the motion of the body. In the case of a motor bike, the force of friction acts in the forward direction, opposite to the direction of the force applied by the engine of the motor bike.
Factors affecting the force of friction:
The force of friction depends upon the following factors:
- Nature of the surfaces in contact
- The force pressing the two surfaces together
- The area of contact between the two surfaces
Types of friction:
There are three types of friction:
- Static friction: It is the force of friction that prevents an object from moving when a force is applied to it.
- Kinetic friction: It is the force of friction that opposes the motion of an object when it is in motion.
- Rolling friction: It is the force of friction that acts between the surfaces of two objects that are rolling over each other.
Importance of friction:
Friction is an important force in our daily lives. It helps us to walk on the ground, drive a car, ride a bike, and play sports like soccer and basketball. Without friction, we would not be able to hold objects or move them around. It is also the reason why we can write with a pen or pencil.
Conclusion:
In conclusion, the force of friction exerted by the Earth is the reason for the acceleration of a motor bike on a horizontal road. It is an important force in our daily lives and helps us to perform various activities.
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Community Answer
A motor bike accelerates on the horizontal road due to the force exert...
The car pushes the ground in the backward direction and according to the third law of motion, reaction force of the ground in the forward direction acts on the car.
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A motor bike accelerates on the horizontal road due to the force exerted by :a)the engine of motorbikeb)the earthc)the driver on the motorbiked)none of the above.Correct answer is option 'B'. Can you explain this answer?
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