Grade 8 com

The point where whole maas is supposed to be concentrated is called

• Centre of gravity

• Centre of mass

• Both

• Centre of weight

A________________body can undergo translatory, rotatory and all other types of motion.

• Rigid

• Soft

• Hard

• None

________________________is defined as a point where the whole weight of the body is supposed to be concentrated

• Centre of mass

• Centre of gravity

• Centre of force

• None

For__________ bodies centre of mass and centre of gravity coincides with each other

• Regular shaped bodies

• Irregular shaped bodies

• Random bodies

• None

The distance of centre of mass from any of the particle(r) is _______________ to the mass of the particle.

• Directly proportional

• Inversely proportional

• Equal

• None

The coordinates of centre of mass of uniform rod of length L is ____________

• (L,0,0)

• (L,L,0)

• (L/2,0,0)

• (L/2,L/2,0)

Centre of mass follows the same path that a ______________ follows.

• Projectile particle

• Oblique

• Straight

• None

No mass leaves or enters the system during _____________

• Motion

• Rest

• Applying force

• Pressure

Rcom=____________

• 
• 
• 
• None