A 1.5 KG gun can fire a bullet 300 mph when the bullet is fired the...
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1.5 KG gun can fire a bullet 300 mph when the bullet is fired the...
9) A bullet with mass 0.0075 kg is fired with a gun with mass 0.95 kg....
9) A bullet with mass 0.0075 kg is fired with a gun with mass 0.95 kg. The bullet leaves the gun at 380 m/s. a) What is the recoil speed of the gun? Assume the gun was at rest before firing. b) Is the momentum of the bullet greater, smaller or equal (in magnitude) to the recoil momentum of the gun? c) Find both the kinetic energy of the bullet and of the gun. Which is bigger, or are they...
A 7.00 g bullet, when fired from a gun into a 0.80 kg block of wood held in a vise, penetrates the block to a depth of...
A 7.00 g bullet, when fired from a gun into a 0.80 kg block of wood held in a vise, penetrates the block to a depth of 7.00 cm. This block of wood is next placed on a frictionless horizontal surface, and a second 7.00 g bullet is fired from the gun into the block. To what depth will the bullet penetrate the block in this case? (............) cm
7. Figure 4 shows a cannon. When the gun is fired, high pressure gasses accelerate the...
7. Figure 4 shows a cannon. When the gun is fired, high pressure gasses accelerate the projectile. The reaction force pushes the gun barrel in the opposite direction to the projectile. The gun barrel is made to translate backwards against a critically damped spring-damper system called the recoil mechanism. The mass of the gun barrel the recoi mechanism is 500 kg and the recoil spring stiffness is 10 kN/m. Upon firing, the gun recoils 0.4 m. Find (a) the damping...
1)A bullet is fired vertically upward from a gun with an initial velocity of 235 m/s....
1)A bullet is fired vertically upward from a gun with an initial velocity of 235 m/s. How high does the bullet go? How long does it take to reach its maximum height? How long is it in flight? 2)Calculate the kinetic energy of a 0.350 kg baseball thrown at a velocity of 36.0 m/s.
What is the spring constant? A 0.01 kg bullet is fired at 300 m/s at a...
What is the spring constant?
A 0.01 kg bullet is fired at 300 m/s at a 4 kg block that is sitting at rest on a level frictionless surface. The bullet becomes completely embedded in the block. This combination then slides along the surface for 10 cm until it hits a massless spring. When the spring is compressed by 8 cm, the block/bullet combination is at rest. Find the spring constant of the spring.
Momentum and Impulse 2. Your favorite rifle (22 caliber) has a mass of 3.0 kg, a...
Momentum and Impulse 2. Your favorite rifle (22 caliber) has a mass of 3.0 kg, a 40 cm long barrel and weigh 2.6 g (a) Before you fire the rifle, how much momentum does the bullet have? (Not a trick question, I hope) (b) Before firing, what is the momentum of the rifle? (c) The bullet is fired with a velocity of 370 m/s. What is the bullet's momentum? (d) With what velocity does the rifle move backwards (Le. recoil)?...
In principle, when you fire a rifle, the recoil should push you backward. How big a...
In principle, when you fire a rifle, the recoil should push you backward. How big a push will it give? Let's find out by doing a calculation in a very artificial situation. Suppose a man standing on frictionless ice fires a rifle horizontally. The mass of the man together with the rifle is 70 kg, and the mass of the bullet is 10 g. If the bullet leaves the muzzle at a speed of 500 m/s, what is the final...
1. Mountain roads often have switchbacks, a road weaving back and forth across the face of...
1. Mountain roads often have switchbacks, a road weaving back and forth across the face of a mountain slope, so that on any portion of the road there is usually only a gentle incline. Why are these switchbacks used? Do switchbacks require less work for an automobile climbing the mountain than if the automobile went straight up a mountain slope? Does the answer depend on the frictional force on the car’s tires? 2. A 5.0 kilogram rifle fires a bullet...
A ballistic spring system can be used to measure the speed of bullets. A bullet of...
A ballistic spring system can be used to measure the speed of bullets. A bullet of mass 0.005 kg is fired into a block of mass 2 kg. The block, with the embedded bullet, then slides across a frictionless table and collides with a horizontal spring whose spring constant is 50 N m . The opposite end of the spring is anchored to a wall. The spring’s maximum compression is measured to be 0.1 m. Calculate the initial speed of...
A 2 x 10^-3 kg bullet (m) is shot into a 5 kg block (M) of...
A 2 x 10^-3 kg bullet (m) is shot into a 5 kg block (M) of wood which is fixed to a friction less horizontal surface. The bullet hits the block at v = 500m/s 1) Calculate the magnitude of the momentum of the bullet as it hits the block. 2) The bullet embeds itself in the block. How much work is done by the resistive force due to the block in bringing the bullet to rest? 3) The average...
7. Figure 4 shows a cannon. When the gun is fired, high pressure gasses accelerate the projectile. The reaction force pushes the gun barrel in the opposite direction to the projectile. The gun barrel is made to translate backwards against a critically damped spring-damper system called the recoil mechanism. The mass of the gun barrel the recoi mechanism is 500 kg and the recoil spring stiffness is 10 kN/m. Upon firing, the gun recoils 0.4 m. Find (a) the damping...
What is the spring constant?
A 0.01 kg bullet is fired at 300 m/s at a 4 kg block that is sitting at rest on a level frictionless surface. The bullet becomes completely embedded in the block. This combination then slides along the surface for 10 cm until it hits a massless spring. When the spring is compressed by 8 cm, the block/bullet combination is at rest. Find the spring constant of the spring.
Momentum and Impulse 2. Your favorite rifle (22 caliber) has a mass of 3.0 kg, a 40 cm long barrel and weigh 2.6 g (a) Before you fire the rifle, how much momentum does the bullet have? (Not a trick question, I hope) (b) Before firing, what is the momentum of the rifle? (c) The bullet is fired with a velocity of 370 m/s. What is the bullet's momentum? (d) With what velocity does the rifle move backwards (Le. recoil)?...
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