Homework Statement
A baseball is hit directly upward with an initial speed of 37 m/s. Find the velocity of the ball when it is at a height of 47 m.
Homework Equations
F=ma
F=ag
The Attempt at a Solution
F=(37)(-9.8)=-362.6/47=7.7[/B]
Let me start over.
Three blocks rest on a frictionless, horizontal table (see figure below), with m1 = 6 kg and m3 = 14 kg. A horizontal force F = 111 N is applied to block 1, and the acceleration of all three blocks is found to be 3.4 m/s2
all 3 blocks are side by side F--->123
(a) Find m2...
Yes it force is applied to 1 and is in order as 123. so that means add all 3
6+12.64+14+32.64
f/m=a
111/32.64=3.4
so its 32.64?
Im not sure why I did it that way. I thought because I only needed 2 and 3 that was the way to do it.
Ok F=(m1+m2+m3)xa
111=(6+m2+14)X3.4
111=(m2+20)x3.4
111=3.4m+68
111-68=3.4m
43/3.4m=12.64
is b 90.57
F=a(m2+m3)
F=3.4(12.64+14)
F=90.57
Thanks for not giving me the answer, I learn better by doing it.
I think I did something wrong again
So I was sick last week for 3 classes and I really missed something and don't know what I am doing.
Three blocks rest on a frictionless, horizontal table (see figure below), with m1 = 6 kg and m3 = 14 kg. A horizontal force F = 111 N is applied to block 1, and the acceleration of all three...