A 1.2-kg object moving with a speed of 8.0 m/s collides perpendicularly with a wall and emerges with a speed of 6.0 m/s in the opposite direction. If the object is in contact with the wall for 2.0 ms, what is the magnitude of the average force on the object by the wall?
a. 9.8 kN
b. 8.4 kN
c. 7.7 kN
d. 9.1 kN
e. 1.2 kN
b
You might also like to view...
A 2.0-?F capacitor that is initially uncharged is charged through a 50-k? resistor. How long does it take for the capacitor to reach 90% of its full charge?
A) 0.90 s B) 2.2 s C) 0.23 s D) 2.3 s
In terms of Jupiter masses, what is the range of brown dwarfs? What are objects above and below this range called?
What will be an ideal response?
Unpolarized light is passed through three successive Polaroid filters, each with its transmission axis at 45.0° to the preceding filter. What percentage of light gets through?
a. 0% b. 12.5% c. 25.0% d. 50.0% e. 33.3%
During the investigation of a traffic accident, police find skid marks 90 m long. They determine the coefficient of friction between the car's tires and the roadway to be 0.50 for the prevailing conditions
Estimate the speed of the car when the brakes were applied.