Question

define newtons secound law​

Answer 1

Answer:

Newton Second law states that the acceleration

of an object is directly related to the net force and inversely related to its mass. Acceleration of an object depends on two things, force and mass.

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Answer 2

⭐Your Question:

Define Newton's second law of motion.

⭐Your Answer:

'The rate of change of momentum is proportional to the applied force and the change of momentum occurs in the direction of the force'

Suppose an object of mass m has an initial velocity u. When a force F is applied in the direction of its velocity for time t, its velocity becomes v.

: . The initial momentum of the object=mu,

Its final momentum after time t=mv

: . Rate of change of momentum=change in momentum/time

: . Rate of change of momentum=mv-mv/t

=m(v-u) /t=ma

According to Newton's second law of motion, the rate of change of momentum is proportional to the applied force.

: . ma directly proportional to the F.

: . F=kma (k=constant of proportionality and its value is 1)

F=m×a

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