ROTATIONAL AND CIRCULAR MOTION Flashcards
1
Q
what is circular motion?
A
motion of a body in circular path
2
Q
formula for arc length s
A
s = rθ
3
Q
what is angular displacement
A
angle covered by radial line when a particle moves from one point to another on the circumference of the circle
3
Q
formula for θ
A
θ = s/r
4
Q
arc length is _______ proportional to angular displacement
A
directly
4
Q
which factor of velocity remains constant in circular motion/
A
the magnitude
5
Q
if the body is moving in a circle of radius r and linear velocity v, the formula for angular velocity will be
A
ω = v/r
6
Q
if the duration of time is same for the rotation of two objects, the ratio of angular speed is
A
1:1
same
7
Q
if an object rotating in a circle tied with a string is released, it will move
A
tangentially outward
8
Q
A
