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A 3-kilogram ball is accelerated from rest to a speed of 10 m/sec. What is the ball's change in momentum?

Sagot :

olemakpadu
Change in Momentum =  mv - mu.

u = 0, v = 10 m/s.  Note ball accelerated from rest, so initial velocity = 0. u =0

Change in Momentum =  mv - mu = 3*10 - 3*0 =30.

Change in Momentum = 30 kgm/s.

Answer

The change in momentum of ball is 30kg m/sec .

Explanation:

Formula for change in momentum is given by .

[tex]\Delta P = mv -mu[/tex]

Where m is mass , v is final velocity and u is initial velocity .

As given

A 3-kilogram ball is accelerated from rest to a speed of 10 m/sec.

m = 3

u = 0 m/sec

v = 10 m/sec

Putting values in the formula

[tex]\Delta P = 3\times 10 -3\times 0[/tex]

[tex]\Delta P = 30\ kg\ m/sec[/tex]

Therefore the change in momentum of ball is 30kg m/sec .



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