Question

Is this there in the scope of syllabus of Xth ICSE Physics
Q. i)A body of mass 5kg is falling freely under gravity.Find the momentum of the body which has fallen for 5s.
ii)Find the height of the body from which it was made to fall?

Answer 1

Answer:

yes you can get it easily

Explanation:

let see..

time = t = 5s

mass= m = 5kg

momentum = p = ?

g = 9.8 m/s²

velocity = v = g(t)

= 9.8(5)

= 49 m/s

so we have,

p = mv = (5)(49)

p = 245 kgm/s