Skip to main content
P

The coefficient of kinetic friction for a 22 kg bobsled on a track is 0.30. What force is required …?

The coefficient of kinetic friction for a 22 kg bobsled on a track is 0.30. What force is required to push it down a 6.0° incline and achieve a speed of 68 km/h at the end of 75 m?
0
Save

1 Answers

D
Hello,Vo=0m/s , x=75m , V=18.8888889m/s , a=? V² = Vo² + 2ax ==> a = [V² - Vo²]/(2x) = [18.8888889² - 0²]/(2*75) = 2.3786m/s²From Newton's second law: F + mgsin(θ) - μmgcos(θ) = maF = m[a + μgcos(θ) - gsin(θ)] = 22[2.3786 + 0.39.8cos(6°) - 9.8*sin(6°)]F = 94.118N... Show More
0

Want to answer this question?

Join our community to share your knowledge!

Log in Sign up

Categories

Tags

Related Questions

4
The coefficient of static friction between hard rubber and normal street pavement is about 0.7.?

The coefficient of static friction between hard rubber and normal street pavement is about 0.7. On how steep a hill (max...

3
the coefficients in a balanced chemical equation always can express the ratio of…?

a) moles of reactants and productsb) volume of reactants and productsc) atoms of reactants and productsd) mass of reacta...

3
The coefficients in a balanced chemical equation always can express the ratio of

The coefficient of the balanced chemical equation always express the ratio of moles of reactants and the products as bef...

2
The combustion of ammonia in the presence of excess oxygen yields no2 and h2o: 4 nh3 (g) + 7 o2 (g) → 4 no2 (g) + 6 h2o (g) the

The combustion of ammonia in the presence of excess oxygen yields no2 and h2o: 4 nh3 (g) + 7 o2 (g) → 4 no2 (g) + 6 h2o...

4
5
The combustion of pentane, c5h12, occurs via the reaction c5h12(g)+8o2(g)→5co2(g)+6h2o(g) with heat of formation values given by

The combustion of pentane, c5h12, occurs via the reaction c5h12(g)+8o2(g)→5co2(g)+6h2o(g) with heat of formation values...

1
The combustion of propane (C3H8) in the presence of excess oxygen

The combustion of propane (C3H8) in the presence of excess oxygen yields CO2 and H2O:C3H8 (g) + 5O2 (g) → 3CO2 (g) + 4H2...

10
The commas are used correctly in the sentence because the underlined element is

The commas are used correctly in the sentence because the underlined element is

3
The common name for butanone, a readily available solvent, is​

The common name for 2-butanone, a readily available solvent, is B-butanone

4
The compelling drive and energy in baroque music are usually provided by

The compelling drive and energy in baroque music are usually provided bya. a bawdy text. b. complex harmonic progression...