Moving blades of windmill has ………………… (rotatory/curvilinear) motion.

A vehicle moving on a straight road has ....................... (rectilinear/curvilinear) motion.

Wheels of a car have .................. (rotatory/multiple) motion.

The blades of a windmill sweep out a circle of area A. If the wind flows at a velocity v perpendicular to the circle, then the mass of the air of density rho passing through it in time t is

Velocity v//s Position graph of a particle performing curvilinear motion is as shown. Then select the CORRECT statement :

A toy train moving around a circular track has rotatory motion.

Explain the meanings of curvilinear motion. Give one example

What is rotatory motion? Give two examples.

A ball thrown by a boy from a roof-top has oscillatory motion.

(A) : No force is required by the body to remain in a state of uniform motion. (r) : In uniform linear motion, acceleration has a finite value.

Assertion: Circular and projectile motions both are two idimensional motion.But In circular motion, we cannot apply v=u+at directly, whereas in projectile motion we can. Reason: Projectile motion takes place under gravity, while in circular motion gravity has no role.