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January 28, 2015

January 28, 2015

Posted by **LadyJ** on Thursday, December 1, 2011 at 2:19pm.

r1 = <(3i+3j)t + 2jt^2>

At the same time, the vector position of a 5.85 g particle varies according to the following equation.

r2 = <3i - 2it^2 - 6jt>

For each equation, t is in s and r is in cm. Solve the following when t = 2.10

(e) Find the net force exerted on the two-particle system.

____i ìN

____j ìN

- Physics -
**Steve**, Thursday, December 1, 2011 at 3:06pmr1 = 3ti + (2t^2 + 3t)j

r2 = (3-2t^2)i - 6tj

v1 = r1' = 3i + (4t+3)j

v2 = r2' = -4ti - 6j

a1 = r1'' = 4j

a2 = r2'' = -4i

F1 = m1a1 = 3*4j = 12j

F2 = m2a2 = 5.85(-4i) = -23.4i

Fnet = -23.4i + 12j

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