Question

Does newton's second law always hold good?​

Answer 1

no it is only applicable when body has const acceleration

Answer 2

ANSWER.....

• NEWTON'S SECOND LAW OF MOTION

THE NET FORCE ACTING ON A BODY OF SOME MASS IS DIRECTLY PROPORTIONAL TO THE ACCELERATION OF THE BODY....✓

• LIMITATIONS....

IN THIS DEFINITION SOME THING IS NEED TO WORRY ABOUT.

• THE FORCE ACTING ON A MASS IS NOT PROPORTIONAL TO THE ACCELERATION. BUT NET FORCE IS PROPORTIONAL TO THE ACCELERATION OF THE MASS. SO WHEN THE MULTIPLE FORCE IS ACTING UPON A MASS THAN THE ACCELERATION OF THE MASS IS DUE TO THE RESULTANT OF THESE FORCE....[✓]

• MAKE SURE THAT THE FORCE AND THE ACCELERATION ARE IN THE SAME DIRECTION BEFORE APPLYING NEWTON'S SECOND LAW OF MOTION.....[✓]

• THIS LAW IS STRICTLY APPLICABLE ONLY WHEN THE ACCELERATION IS CONSTANT...[✓]

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