A 2.0-kg body moving along the x axis has a velocity vx = 5.0 m/s at x = 0 . The only force acting on the object is given by Fx = (?4.0x) N, where x is in m. For what value of x will this object first come (momentarily) to rest?
a. 4.2 m
b. 3.5 m
c. 5.3 m
d. 6.4 m
e. 5.0 m
b
You might also like to view...
Snell's Law: A narrow light beam in vacuum contains light of two wavelengths, 480 nm and 700 nm. It strikes a flat piece of glass at an angle of incidence of 60.000°. The index of refraction of the glass is 1.4830 at 480 nm and 1.4760 at 700 nm. Determine the angle between the two wavelengths as the light travels in the glass.
Fill in the blank(s) with the appropriate word(s).
The Sun's mass and volume are over a million times that of our Earth
Indicate whether the statement is true or false
The length of a certain wire is kept same while its radius is doubled. What is the new resistivity of this wire?
A) It is increased by a factor of 2. B) It is increased by a factor of 4. C) It is reduced by a factor of 2. D) It is reduced by a factor of 4. E) It does not change.
A straight 10-cm wire bent at its midpoint so as to form an angle of 90° carries a current of 10 A. It lies in the xy plane in a region where the magnetic field is in the positive z direction and has a constant magnitude of 3.0 mT. What is the magnitude of the magnetic force on this wire?
a. 3.2 mN b. 2.1 mN c. 5.3 mN d. 4.2 mN e. 6.0 mN