NEET Class neet Answered
if a body starts from rest and moving with constant acceleration .its momentum vs time graph will be
Asked by yneha0826 | 18 Aug, 2021, 12:16: AM
Expert Answer
Equation of motion relating velocity and time is given as
v = u + ( a × t ) .................. (1)
where v is velocity at time t , u is initial velocity and a is constant acceleration .
Hence relation between momentum p and time t is given as
p = m × v = ( m × u ) + ( m × a × t ) = po + ( F × t ) .................. (2)
where Po = ( m × u ) is initial momentum and F = ( m × a ) is force . Since acceletion is constant force is also constant .
Hence from expression (2) , momentum varies linearly with time as shown in graph
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