The near point (the smallest distance at which an object can beseen clearly) and the far point (the largest distance at which anobject can be seen clearly) are measured for six differentpeople.
near point (cm) far point (cm)
avishka 40 infinity
berenice 30 300
chadwick 25 500
danya 25 infinity
edouard 80 200
francesca 50 infinity
part d
of the farsighted people, rank them by the power of the lens needed to correct their hyperopic vision.
rank these from largest to smallest power required. to rank items as equivalent, overlap them.
francesca, avishka, edouard, berenice

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.

distance = 150m

displ = root (50 ^2 + 100^2)

root(2500+10000)

root 125000

false.

explanation:

this statement is false. after falling for 5 seconds, its speed will not be 100 m/s.