A 7.0-kg object is acted on by two forces. One of the forces is 10.0 N acting toward the east. Which of the following forces is the other force if the acceleration of the object is 1.0 m/s2 toward the east?

A) 6.0 N east
B) 3.0 N west
C) 12 N east
D) 9.0 N west
E) 7.0 N west


Answer: B

Physics & Space Science

You might also like to view...

Solid solution strengthening is _________with designs that require the part to be heated during fabrication by processes such as welding or hot working.

Fill in the blank(s) with the appropriate word(s).

Physics & Space Science

Terminal Voltage and Internal Resistance: A battery has an emf ? = 43.0 V and an internal resistance r = 8.0 ?, as shown in the figure. When the terminal voltage Vab is equal to 34.0 V, the current through the battery, including its direction, is closest to

A. 1.1 A, from b to a. B. 4.2 A, from b to a. C. 1.1 A, from a to b. D. 4.2 A, from a to b. E. 5.4 A, from b to a.

Physics & Space Science

Object A emits most strongly at 400 nm, while object B emits most strongly at 800 nm. What can we say about their relative temperatures?

A. A's temperature is the same as B's. B. B's temperature is twice as high as A's. C. A's temperature is twice as high as B's. D. Nothing. Temperature is related to brightness, not emitted wavelength.

Physics & Space Science

Rita accelerates a 0.40-kg ball from rest to 12 m/s during the 0.15 s in which her foot is in contact with the ball. What average force does she apply to the ball during the kick?

a. 48 N c. 24 N b. 32 N d. 64 N

Physics & Space Science