Answer:
Muscle strength can be said as the ability of the muscle to use its maximum force for doing some work which needs very less time.
Example: Lifting a heavy box into a cart, ability of a person to lift a heavy child and out it into bed, ability to lift heavy weights in a row.
These events show that strength in muscle is required for a short period of time.
Muscle endurance can be defined as the ability of the muscles to work again and again for a longer duration of time period of time.
Example: ability to perform 20 sit-ups in a row and ability to carry school bag from school.