- #1
physics_geek
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Homework Statement
The vector position of a 3.15 g particle moving in the xy plane varies in time according to the following equation.
r1 = (3i+3j)t + 2jt^2
At the same time, the vector position of a 5.00 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 = 2.50:
(a) Find the vector position of the center of mass.
i cm
j cm
(b) Find the linear momentum of the system.
i g-cm/s
j g-cm/s
(c) Find the velocity of the center of mass.
i cm/s
j cm/s
(d) Find the acceleration of the center of mass.
i cm/s2
j cm/s2
(e) Find the net force exerted on the two-particle system.
i μN
j μN
Homework Equations
im really not sure about this
i think for some of them you would use p=mv
and for the center of mass you use 1/M integral of r??
The Attempt at a Solution
im not sure what to do first
am i plugging in for t first? and then what do i do?