Question

a horse has to exert a greater force during the start of the motion than later. explain ​

Answer 1

You can refer to the given attachment

Answer 2

A horse has to exert a greater force during the start of the motion than later because of the following reason:

• When any object comes into contact with another object, two contact forces are at work. These contact forces are:
• Limiting friction occurs when two objects are at rest and have the maximum frictional force. To overcome this, the horse must exert more energy to begin moving.
• Dynamic friction is the frictional force that exists between two objects after one of them has begun to move over the other. This force has a lower intensity than the limiting friction.
• Because limiting friction is higher than dynamic friction, the horse must apply more effort at the beginning of motion than afterward.