Homework Statement
If A, B, and C are the vertices of a triangle, find the following.
(A→B) + (B→C) + (C→A)
The answer has to be given like this:
_____ i + _____ j
2. Homework Equations (I think?)
a+b=b+a
a+(b+c)=(a+b)+c
a+0=a
a+(-a)=0
c(a+b)=ca+cb
(c+d)a=ca+da
(cd)a=c(da)...
because this is a question with multiple parts, and the answers to the first parts are based on the reference points of the boat's initial position, with the left of the boat starting at x=0. I guess there's a chance that SmartPhysics has an error, but I'm completely stumped.
Homework Statement
A man with mass m1 = 60 kg stands at the left end of a uniform boat with mass m2 = 169 kg and a length L = 2.7 m. Positive x is pointing to the right. Assume there is no friction or drag between the boat and water. After the man walks to the right edge of the boat, what is...
Homework Statement
Three blocks on a frictionless surface are connected by strings like so (from left to right):
Block 1 (m=10kg) to string with Tension 1 to Block 2 (m=20kg) to string with Tension 2 to Block 3 (m=30kg) to string with Tension 3.
The blocks are pulled to the right with...
Homework Statement
A 2kg block & 3kg block (left & right, respectively) are on a horizontal frictionless surface connected by a spring with K=140 N/m. A 15N force is applied to the 3kg block towards the right. How much does the spring stretch from its equilibrium length?
Homework...