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den301095 [7]
3 years ago
5

You are a pirate working for Dread Pirate Roberts. You are in charge of a cannon that exerts a force 20,000 N on a cannon ball w

hile the ball is in the barrel of the cannon. The length of the cannon barrel is 1.84 m, and the cannon is aimed at a 50-degree angle from the ground.(1) The acceleration of gravity is 9.8 m/s2. If Dread Pirate Roberts tells you he wants the ball to leave the cannon with speed v0= 76 m/s, what mass cannon ball must you use?(2) Assuming the Dread Pirate Roberts never misses, how far from the end of the cannon is the ship that you are trying to hit (neglect dimensions of the cannon)?
Physics
1 answer:
dmitriy555 [2]3 years ago
6 0

Answer:

Explanation:

Force F=20,000 N

Length of barrel L=1.84 m

launch angle \theta =50

velocity at the time of launch v=76 m/s

using v^2-u^2=2 as

(76)^2=2\times a\times 1.84

a=1569.56 m/s^2

mass m=\frac{F}{a}=\frac{20,000}{1569.56}

m=12.74 kg

(2)Range of ball

R=\frac{u^2\sin 2\theta }{g}

R=\frac{(76)^2\sin 100}{9.8}

R=580.43 m

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The acceleration of a rocket engine is given here, and after 50 seconds of flight, the engine fails, and we must determine the altitude of the rocket at the time the engine fails.  Because the rocket starts from rest, the time taken is 50 seconds, the initial velocity is zero, and the acceleration is 22.9 meters per second square. So we use the kinamatics equation s equal to v. I t plus half 8 square. There is no acceleration at the start. 22.9 and t is 50 seconds, so displacement 2.86 times 10 to the power 4 is met. This is the rocket's displacement in 50 seconds, so this is the rocket's altitude when the engine fails.

<h3>What exactly is accelerate?</h3>
  • In mechanics, acceleration is defined as the rate of change of an object's velocity with respect to time. Vector quantities are accelerations. The orientation of an object's acceleration is determined by the orientation of its net force.
  • In his second law of motion, Sir Isaac Newton (1642-1727) defined acceleration as the ratio of a force acting on an object to its mass: a = f/m.
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To know more about Accelerate refer to:

brainly.com/question/460763

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