Explanation: The average force on the cannonball will be the same for a short- or long-barreled cannon. The longer barrel provides for a longer time for the force to act, and therefore, a greater impulse.
How does the velocity of the fired cannonball compare to the recoiling cannon?
The speed of the cannonball will be the same as the speed of the recoiling cannon ... if the mass of the cannonball equals the mass of the cannon. When you jump off a step, you usually bend your knees as you reach the ground.
Which has the larger acceleration the cannonball or the cannon?
The amount of force the cannon has to shoot the cannonball is equal to the amount of force the cannonball has on the cannon. The cannonball has a greater acceleration because it moves a larger distance and has less mass. If they were equal in mass they would move at the same rate.
Which would provide a bigger impulse a short barrel or long barrel and why?
a long barrel imparts more speed than a short barrel because the projectile is in the barrel for more time . Remember, impulse = FΔT. More time means more impulse, which means a larger change in momentum, which means a faster moving cannon ball. ... a small stopping time results in a large force applied to the hand.
When a cannonball is fired from a cannon?
When a cannon is fired, the cannon ball gains forward momentum and the cannon gains backward momentum . Before the cannon is fired (the ‘event’) the total momentum is zero. This is because neither object is moving.
Why do the cannon and cannonball cancel out each others momentum?
After the firing occurs, both the cannon and cannonball have the same momentum (big mass, small velocity vs. small mass, big velocity). But since the momentum for each is moving in the opposite direction, the momentums cancel out , causing the cannon-cannonball system’s momentum to equal zero.
Are acceleration and mass directly proportional?
Acceleration is produced by a net force on an object and is directly proportional to the magnitude of the force , in the same direction as the force, and is inversely proportional to the mass of the object.
When a cannonball is fired from a cannon which undergoes the greater acceleration group of answer choices?
When a cannonball is fired from a cannon, which undergoes the greater acceleration? 260 N. 0.8 m/s2 . How does the magnitude of F relate to the vector sum of mg and N when the shoe is in equilibrium?
Does Newton’s third law apply if a system is accelerating?
Forces on a Stationary Object
However, the scale does not measure the weight of the package; it measures the force −→S on its surface. If the system is accelerating, →S and −→w would not be equal , as explained in Applications of Newton’s Laws.
Why do mountain climbers favor nylon ropes which stretch considerably under stress?
Nylon ropes, which stretch considerably under tension, are favored by mountain climbers because they stretch and take time in coming to a stop when mountain climbers accidentally fall.
Why it is better to hit a hay stack than hit a wall?
When a dish falls, will the change in momentum be less if it lands on a carpet than if it lands on a hard floor? (Careful!) Examples: When a car is out of control , it is better to hit a haystack than a concrete wall. ... You provide the impulse to reduce its momentum to zero.
Can a small light ball have the same momentum as a large heavy ball?
5) A heavy object and a light object have the same momentum. ... Reasoning: Momentum = mass x velocity . Thus if two objects have the same momentum, the lighter object will have a larger velocity.
How long does it take the cannonball to hit the ground?
It takes about 88 seconds for the cannonball to reach its maximum height (ignoring air resistance). You have 176 seconds, or 2 minutes and 56 seconds, until the cannonball destroys the cannon that fired it.
Why does the cannon ball go faster than the cannon?
Most students immediately make the connection that the “forward” momentum of the ball is exactly balanced by the “backward” momentum of the cannon. Although the ball moves at a much higher speed than the cannon, the cannon’s larger mass makes this possible (mV = Mv).
Why does a gun recoil backwards when fired explain?
When a bullet is fired from a gun, the gun exerts a force on the bullet in the forward direction. The bullet also exerts an equal and opposite force on the gun in the backward direction . ... Therefore a gun recoils when a bullet is fired from it.
When a cannonball is fired from a cannon which experiences the greater force?
Newton’s third law states that for every action there must be an equal and opposite reaction, so the forces on the cannon and cannonball are equal in magnitude (but not direction). and the mass of the cannon is larger than the mass of the cannonball, so the acceleration is lesser for the cannon than for the cannonball.
