Practice portal › Laws of Motion › Impulse and Momentum Change
Asked in AIPMT 2011 Mains · Impulse and the change in momentum
Given: the height is increased by 100%, so the new height is 2h.
Idea: from rest, v=√2gh, so momentum P=m√2gh goes as √h.
(P₂)/(P₁)=√(2h)/h=√2.
√2=1.414.
Fractional change =√2-1=0.414.
That is an increase of about 41%.
Reading this solution needs no sign-in. You only sign in to practise against the clock and keep your progress.
Practise this with a timer