- #1
chaotixmonjuish
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A 3.46 kg block located on a horizontal floor is pulled by a cord that exerts a force F = 13.9 N at an angle theta = 26.0° above the horizontal, as shown in the Figure. The coefficient of kinetic friction between the block and the floor is 0.09. What is the speed of the block 3.5 s after it starts moving?
I'm having a bit of a problem with this. Mainly because I'm not sure how to answer the question. I got a decimal number less than 1 for the acceleration. Here are my two equations:
Y: T*sin(theta)-mg=0
X: F+T*cos(theta)=ma
a=.8790
I'm having a bit of a problem with this. Mainly because I'm not sure how to answer the question. I got a decimal number less than 1 for the acceleration. Here are my two equations:
Y: T*sin(theta)-mg=0
X: F+T*cos(theta)=ma
a=.8790