Question

Pom
m
w
2 rad/s
C С
►
2 m/s
2. A disc of radius R
2.
is rolling on a plank. If
the disc is moving on
the plank with angular
velocity w = 2 rad/s and
speed vc 2 m/s. Find
the speed of the plank for
pure rolling
P
3
А
dise of​

Answer 1

ANSWER

Since it is pure rolling the velocity of the point at the bottom will be equal to velocity of plank.

So at A

V

cm

−RW=4

V

cm

−3=4

⇒V

cm

=7m/s