A few questions i need help with, cannot find the rest in textbook plz help youll get 10 points:]?

1. Which of the following relationships is correct?


a. 1 N= 1 kg


b. 1 N= 1 kg . m


c. 1 N= 1 kg . m/s


d. 1 N= 1 kg . m/s2





3. As you push a cereal box across a tabletop, the sliding friction acting on the cereal box


a. acts in the direction of motion


b. equals the weight of the box.


c. is usually greater than static friction.


d. acts in the direction opposite of motion.





5. The acceleration due to gravity on the surface of Mars is about one-third the acceleration due to gravity on Earth’s surface. The weight of a space probe on the surface of Mars is about





a. nine times greater than its weight on Earth’s surface.


b. three times greater than its weight on Earth’s surface.


c. one-third its weight on Earth’s surface.


d. the same as its weight on Earth’s surface.





9. Which of the following universal forces is the most effective over long distances?





a. electric


b. gravitational


c. magnetic


d. strong nuclear





11. The type of force measured by a grocery store spring scale is _____________.


13. The path of motion of a thrown javelin is an example of _____________ motion.


16. A small 32-kilogram canoe broke free of its dock and is now floating downriver at a speed of 2.5 m/s. What is the canoe’s momentum? Show your work.

A few questions i need help with, cannot find the rest in textbook plz help youll get 10 points:]?
1. d


3. d


5. c


9. b


11. Nm-1


13. parabolic


16. p= mv


= 32 x 2.5


= 80 kgms-1