Skip to content
Login Register

#mass

2 public questions tagged with this topic.

Rotational Kinetic Energy and Dynamics

What is the effect of increasing the mass of a rotating body on its angular momentum, if angular velocity remains consta

Angular momentum L = Iω, and I increases with mass. If ω is constant, L increases proportionally with mass. As per NCERT, applying relevant law/formula with correct units and sign convention leads to It increases. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

View Details
Gravitational Effects and Applications

Three masses of 4kg each are at the vertices of an equilateral triangle with side 3m. What is the net force on one mass?

Force between two masses: F = Gm1m2r2 = 6.67×10−114×432 = 1.185×10−10N. Two forces act at 60°: FR = F2+F2+2F2cos⁡60∘. FR = (1.185×10−10)2(1+1+1) = 1.185×10−103. FR≈2.05×10−10N. As per NCERT, applying relevant law/formula with correct units and sign convention leads to 2.2 × 10⁻¹⁰ N. This satisfies dimensional consistency and physical conditions given, so option C is scientifically correct.

Ref: NCERT Class 11 Physics, Thermal Properties and Gravitation.

View Details