Answer:
8.6 N
Step-by-step explanation:
Let T be the unknown force
Let θ be the slope of the inclined plane to horizontal
Let φ be the angle of the force to the plane
Let μ be the coefficient of static friction
Let m be the mass
Let N be the Normal force of plane on mass
Let Ff be the friction force which will have a maximum at μN
Let g be gravity
Forces acting <u>parallel to the plane</u>. Upslope is positive
For minimum force T, friction will be max and acting upslope.
F = ma
Tcosφ - mgsinθ + Ff = m(0)
Tcosφ - mgsinθ + μN = 0
Tcosφ - mgsinθ + μ(mgcosθ - Tsin(θ + φ)) = 0
T(cosφ - μsin(θ + φ)) + μmgcosθ - mgsinθ = 0
T = mg(sinθ - μcosθ) / (cosφ - μsin(θ + φ))
T = 2(9.8)(sin30 - 0.25cos30) / (cos30 - 0.25sin(30 + 30))
T = 8.5547537...
Answer:
$90,958.61
Step-by-step explanation: I THINK
Answer:
f(2)=4
Step-by-step explanation:
Answer:
Danny charges a better deal because the amount would be 40 dollars a day
Step-by-step explanation:
3) Take the original price and subtract the original price * the discount percentage
99.50 - (99.50 * 0.50)
99.50 - 49.75
49.75
Option C is your answer.
4) Take the original price and add the original price * the tax rate
99.50 + (99.50 * 0.04)
99.50 + 3.98
103.48
Option D is your answer.
5) Take the original price and add the original price * the markup rate
3.95 + (3.95 * 0.20)
3.95 + 0.79
4.74
Option D is your answer.