Read the following passage and identify the error. "The male reproductive structure of a plant produces a sticky substance called pollen. Pollination occurs when a butterfly moves the pollen from the stigma to the ovule."

Which statement will correct the error in the passage?

Pollen moves from the ovule to the pistil.
Pollen moves from the stamen to the stigma.
Pollen moves from the stigma to the ovule.
Pollen moves from the stigma to the stamen.

f=ma newton's second law 7x8=56n

the answer is f1 and d2 because if you put equal force on those two points the beam would balance trust me on this

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

                                              ⇒      

here   k is the proportionality constant whose value is 1.

                                                            [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.