Quiz2b - c) Both experience the same force. 3. [2 points]...

Info iconThis preview shows page 1. Sign up to view the full content.

View Full Document Right Arrow Icon
Physics 53 Quiz 2b Fall 2007 Name ___________________________ Recit. Section _______ Circle the correct answer: 1. [3 points] A race car starting from a standstill can cover a flat, straight 2000 m track in 20.0 s. What is the minimal value of the static friction coefficient that will keep the wheels from losing traction? ( Hint: Use g = 10 m/s 2 .) a) μ s = 0.500. b) μ s = 1.00. c) μ s = 2.00. 2. [2 points] A small car collides with a large truck. Which of the two vehicles experiences the greater impact force? a) The car. b) The truck.
Background image of page 1
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: c) Both experience the same force. 3. [2 points] Two tug-of-war opponents each pull with a force of 100 N on opposite ends of a rope. What is the tension in the rope? a) 100 N. b) 200 N. c) 400 N. 4. [3 points] A mass m resting on a frictionless plane inclined at an angle with respect to the horizontal is pushed with a force F pointing horizontally toward the incline. How large is the minimal force F needed to keep the mass from sliding down the plane? a) m g sin . b) m g cos c) m g tan...
View Full Document

Ask a homework question - tutors are online