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- 1. Multiple ChoiceA 220 Kg crate is pushed horizontally with a force of 700 N. If the coefficient of kinetic friction is 0.20, calculate the acceleration of the crate.1.02 m/s21.22 m/s21.42 m/s21.62 m/s2
- 2. Multiple ChoiceWhat is the force of friction between a block of ice that weighs 950 N and the ground if μ = .12?65 N226 N175 N114 N
- 3. Multiple ChoiceWhat are the units on the coefficient of friction?noneNewtonsmeterskilograms
- 4. Multiple Choice
Assuming both objects are at rest, which object is more massive? M1 or M2?M1 is more massiveM2 is more massiveboth M1 and M2 are the same mass - 5. Multiple ChoiceTo find the normal forcemgsin(θ)mgcos(θ)mgtan(θ)mg
- 6. Multiple Choice
The reactive force that results from a surface "pushing back" against an object is the
force of acceleration
normal force
dissipated force
irregular force
- 7. Multiple Choice
If you punch a wall with a force of 30 N, how many newtons does the wall exert on your hand?
100 N
25 N
30 N
16 N
- 8. Multiple ChoiceA 80 kg skydiver is free falling at a constant velocity of 19 m/s. What is the net (total) force acting on her?1,520 N0 N4.21 NNot enough information to answer
- 9. Multiple ChoiceA book is pushed across the table. It has a friction force of 50 N and a coefficient of friction of 0.30. Find the value normal force.16.7 N166.67 N15 N
- 10. Multiple Choicethe force due to friction on a bike tire is 70 N. If the coefficient of friction of the road is 0.78, what is the mass of the bike?89.78.97 N8.97 kg54.6 kg
- 11. Multiple ChoiceIf there is no friction, a =9.8 m/s/s3.35 m/s/s8.37 m/s/s9.21 m/s/s
- 12. Multiple ChoiceWhich of the following is equal in magnitude to the Normal Force?(M1)(g)sin28⁰(M1)(g)cos28⁰(M2)(g)sin28⁰(M2)(g)cos28⁰
- 13. Multiple ChoiceFriction acts in a direction_______ to the direction of an object's motion.unrelatedequaloppositeperpendicular
- 14. Multiple ChoiceA hockey puck slides on ice at a constant velocity. What is the net force acting on the puck?ZeroEqual to its weightLess than its weight but greater than zeroDepends on the speed of the puck
- 15. Multiple ChoiceTo find the weightmgsin(θ)mgcos(θ)mgtan(θ)mg
- Answer choicesTagsAnswer choicesTags