Question

how much momentum will a ball of a mass 10 kg transfer to a floor if it falls from a height of 80 cm. assume its downward acceleration to be 10 ms-2​

Answer 1

Answer:

mass=10kg

hieght=0.8m

g=10m/s^2

u=0

v=?

now from newton's third equation of motion

v^2-u^2=2as

v^2-0=2x10x0.8

v^2=16

v=4m/s

now,

momentum=mass x velocity

momentum=10x4

momentum=40kgms

hence,the momentum of the body is 40 kgms

Answer 2

it is refered to ncert books