Posted by julia on Monday, November 23, 2009 at 10:39pm.
A 2.0 kg particle is moving along the x axis to the left with a velocity of v= -6.0 m/s. Suddenly, between times t =0 and t = 4.0 x a net force = 3t^2 – 12t is applied to the particle, where F is in N and t is in s. Calculate the velocity of the particle at t=4.0 s.
Is this formula right?
a= force/mass= (3t^2-12t)/2
if so, I get 0
How do I find the velocity at 4s?
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