Advertisements
Advertisements
Question
Two bodies A and B of same mass are moving with velocities v and 2v, respectively. Compare their (i) inertia and (ii) momentum.
Advertisements
Solution
(i) Mass is the measure of inertia.
Let 'm' be the mass of the two bodies.
Inertia of body A:Inertia of body B :: m:m
Or, Inertia of body A:Inertia of body B :: 1:1
(ii) Momentum of body A = m (v)
Momentum of body B = m (2v) = 2mv
Momentum of body A:Momentum of body B :: mv:2mv
Or, Momentum of body A:Momentum of body B :: 1:2.
APPEARS IN
RELATED QUESTIONS
A monkey of mass 40 kg climbs on a rope in given Figure which can stand a maximum tension of 600 N. In which of the following cases will the rope break: the monkey
(a) climbs up with an acceleration of 6 m s–2
(b) climbs down with an acceleration of 4 m s–2
(c) climbs up with a uniform speed of 5 m s–1
(d) falls down the rope nearly freely under gravity?
(Ignore the mass of the rope).
An object is placed far away from all the objects that can exert force on it. A frame of reference is constructed by taking the origin and axes fixed in this object. Will the frame be necessarily inertial?
A person says that he measured the acceleration of a particle to be non-zero even though no force was acting on the particle.
Define linear momentum and state its S.I. unit.
Calculate the magnitude of force which when applied on a body of mass 0.5 kg produces an acceleration of 5 m s-2.
Name the physical entity used for quantifying the motion of a body.
Which of the following has the largest inertia?
Why is it advantageous to turn before taking a long jump?
Name the physical quantity which equals the rate of change of linear momentum.
A ball is thrown upward and reaches a maximum height of 19.6 m. Find its initial speed?
