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<span>torque = rF
= 0.1(10)
=1 Nm</span>
Answer:

Explanation:
F = Force on the sled = 63 N
m = Mass of sled = 28.7 kg
= Coefficient of kinetic friction = 0.169
g = Acceleration due to gravity = 
The force balance of the system is given by

The acceleration of the sled is
.
F=1/(4*pi*e0)*q1*q2/r^2
e0 ≈ 8,854187817·10^−12
F=1/(4*pi* 8,854*10^(-12))*2*10^(-7)*2*10^(-7)/(0,3)^2 H = <span>
0,003995
</span>H ~
0,004
H
Answer:
a = - 0.209 [m/s²]
Explanation:
To solve this problem we must use Newton's second law which tells us that the sum of forces on a body is equal to the product of mass by acceleration.
∑F = m*a
We will take the positive forces to the right and the negative forces to the left.
![155-277+113=43*a\\-9=43*a\\a = - 0.209[m/s^{2} ]](https://tex.z-dn.net/?f=155-277%2B113%3D43%2Aa%5C%5C-9%3D43%2Aa%5C%5Ca%20%3D%20-%200.209%5Bm%2Fs%5E%7B2%7D%20%5D)
The negative sign means that the box accelerates in a negative direction to the left.