Question

2.
If a pushing force making an angle alpa with
horizontal is applied on a block of mass m placed
on horizontal table and angle of friction is ß, then
minimum magnitude of force required to move the
block is​

Answer 1

Explanation:

ANSWER

μ=tanβ

N=mg+Fcosα

so, Fsinα=μN

Fsinα=μ[mg+Fcosα]

F[sinα−μcosα]=μmg

F=

sinα−μcosα

μmg

=d

sinα−tanβcosα

tanβ(mg)

=

sinαcosβ−sinβcosα

sinβ(mg)

=

sin[α−β]

sinβ(mg)

Answer 2

State / UT River Dam

Andhra Pradesh Pennar Somasila

Himachal Pradesh Sutlej Bhakra Dam

Odisha Mahanadi River Hirakud Dam

Uttar Pradesh Rihand River Rihand Dam