A stationary but movable 450-kg cannon is fired, and the 12-kg cannonball moves off to the right with a velocity of 20.0 m/s. What is the cannon's velocity (neglecting friction or any restraints)?
0.53 m/s to the left
You might also like to view...
Why are the temperature fluctuations observed in the cosmic microwave background are important?
What will be an ideal response?
A 50-? resistor is placed in series with a 40-mH inductor. At what frequency will the current in this circuit lag the applied voltage by exactly 45°?
What will be an ideal response?
After an elastic collision of two balls, the kinetic energies of the two balls are measured to be 12J and 24J. What can be said about the kinetic energy of the two balls before the collision?
a. nothing—not enough information is given b. the balls had the same energies, 12J and 24J respectively c. the total kinetic energy of the two balls was 36J d. none of the above
A person weighing 200 pounds stands on snowshoes. If the area of each snowshoe is 400 square inches, the pressure on the snow is
a. 0.25 psi b. 0.5 psi c. 2 psi d. 4 psi e. none of the above