The reaction in a rocket engine forces gases out the tail of the rocket. How does this propel the rocket?

Q: Suppose two steel balls are taken into Earth orbit and collide in the vacuum of space. One ball is…

A: We have given that two steel balls are taken into Earth orbit and collision takes place between…

Q: The center of mass of a system of particles has a constant velocity if: the velocity of the center…

A: When the center of mass of a system of particles has a constant velocity means acceleration of the…

Q: Choose the best answer: An object that is speeding up would have O a a negative momentum b zero…

A: Write the expression for the momentum (p) of an object. p=mv

Q: The of an object is defined as the product of its mass and its velocity O Momentum O Impulse O…

A: Momentum of an object is defined as product of its mass and  its  velocity. Momentum , p = mass ×…

Q: A hockey player applies an average force of 500 N to a 5.25 kg hockey puck for a time of 0.25…

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Q: A 10 kg mass traveling 2 m/s meets and collides elastically with a 2 kg mass traveling 4 m/s in the…

A: Here we have to use conservation of momentum , since the collision is elastic so coefficient of…

Q: What is the principle(s) of physics that cause a rocket to work?

A: The principle behind the propulsion of a rocket is Newton’s 3rd law. According to this law, when an…

Q: State the relation between acceleration and momentum.

A: Acceleration: Rate of change of velocity with respect to time. Momentum: Product of mass and…

Q: A 1500kg yellow Mini Cooper is moving with a momentumof 15000kg m/s south.Its velocity is

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Q: When a rifle with a longer barrel is fired, the force of expanding gases acts on the bullet for a…

A: According to work energy theorem, change in kinetic energy of a system is equal to the work done on…

Q: rocket has a total mass of 100000 kg and a burnout mass of 10000 kg including engines, shell and…

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Q: A boy jumps into a stationary boat with a speed of 5 m/s. Right after, the boat along with the boy…

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Q: A bullet of 25 g is when fired from a piston gets a momentum of 50 kg m/s. Calculate the velocity of…

A: The Momentum Calculator uses the formula p=mv, or momentum (p) is equal to mass (m) times velocity…

Q: The mass of the cannon is 1600 kg and the mass of the cannon ball is 20kg. The recoil velocity of…

A: Given  Mass of canon M=1600kg Mass of cannon ball m=20kg Velocity of canon vc=-5im/s

Q: How do initial velocities affect the final momentums?

A: Since the momentum is given as, p=mv-u

Q: The momentum of the ball is

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Q: A rocket takes off from an asteroid and reaches a speed of 100 m/s. You may neglect the…

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Q: Lucy is cruising through space in her new spaceship. As she coasts along, a tiny spacebug drifts…

A: If net external force acting on the system is zero then momentum of the system will not change . So…

Q: A two-stage rocket is travelling through space at a constant velocity of 1,233 m/s, when a small…

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Q: From a rifle of mass 4 kg, a bullet of mass 50 g is fired with an initial velocity of 35 m/s.…

A: Given : Mass of the rifle (m1) = 4 kg Mass of the bullet (m2) = 50 g =  0.05 kg Recoil velocity of…

Q: A rocket is fired in a gravity-free environment in deep space. The rocket has an initial mass of…

A: Given: Initial mass, m=9000 kg Velocity, v=2375 m/s Acceleration, a=49.50 m/s2 Time, t=2 s

Q: Calculate the momentum of a car that has a mass of 1150 kg and a velocity of 12 ·5 m/s.

A: Given data :                         Velocity    =   V                          Mass    =   m…

Q: A machine gun fires 15 bullets / s each of mass 34 g the speed to each bullets is 40 cm/s, then…

A: Given data :- rate of firing bullet from the machine gun n = 15 bullets/s mass of each bullet m = 34…

Q: Calculate the velocity of a moving body of mass 5kg whose linear momentum is 2.5kg m/s.

A: Given data :        Mass = m       Momentum = M        To find :           Velocity

Q: A bullet of mass 10 gm strikes a ballistic pendulum of mass 2 kg. The center of mass of the pendulum…

A: Given: The mass of the bullet is 10 g. The mass of the pendulum is 2 kg. The vertical height of the…

Q: When two bodies of different masses collide, the impulses they exert on each other are

A: Let F1 and F2 be the forces that act on two bodies A and B of different masses during a collision…

Q: COLLAB) A new design of Satun 18 rocket with mass 1.08 x10° kg has a propulsion engine that can…

A: Calculate the initial mass of the rocket. M0=MR+MF=1.08×106 kg+43.17×106 kg=44.25×106 kg   Here, M0…

Q: How does a compression spring ping pong ball launcher work

A: Here the concept of potential energy as well as kinetic energy has been used. We know a spring…

Q: A car with a mass of 4 kg moving east with a velocity of 5m/s and another car with a mass of 10 kg…

A: Given, first car mass=m1=4 kg velocity=u1=5m/s  ( consider +ve speed towards east) second car…

Q: A 5.0 kg mass has its velocity change from 8.0 m/s east to 2.0 m/s east. Find the objects change in…

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Q: recoil velocity of gun

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Q: A machine gun fires 13 bullets / s each of mass 24 g the speed to each bullets is 32 cm/s, then…

A: Given data :   Number of bullets   =   N   Speed of each bullet   =  v    Mass  of  each  bullet   =…

Q: The startup company SpinLaunch T is pr The arm spins up in a large vacuum char projectile vertically…

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Q: What Is The Principle Of Working Of A Rocket?

A: The principle of rocket propulsion works on the 'Newton's Third Law of Motion'. It states that, 'to…

Q: Calculate the impulse due to a force of 3.5 N that lasts for 1.4 seconds.

A: Force applied (F)= 3.5 N time (t)= 1.4 seconds Impulse(I)= Ft

Q: A rocket is fired in a gravity-free environment in deep space. The rocket has an initial mass of…

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Q: Consider two balls that are the same size but different masses like a bowling ball and beach ball…

A: According to the equation of motion, initial height of the dropped balls, h = ut + (1/2)gt2  Where,…

Q: Rocket works on the principle of conservation of: A) Momentum B) Mass C) Velocity D) Energy

A: On Earth, the force of friction propels the objects like bus,car and train. The car and bus pushes…

Q: Calculate the momentum of the Titanic (m = 4.2x10 kg) moving at 14 knots (1 kt = 1.852 km/hr)

A: Given data:  Mass (m) = 4.2×107 kg Speed (v) = 14 knots 1 kt = 1.852 km/hr Required: The momentum…

Q: A body having mass of 20 kg and moving at 20km/h collides with another body of mass 24kg at rest and…

A: Mass of the lighter object,  Mass of the heavier object,  Initial speed of the lighter object,…

Q: Two rockets are being tested. Both rockets have the same mass. One rocket accelerates at a higher…

A: The Answer is Option (c) One rocket engine produces more force than the other.

Q: Why is force is said to be the rate of change of momentum and not change in momentum?

A: The rate of change of momentum of an object is directly proportional to the resultant force applied…

Q: Derive the equation for the vertical acceleration of a rocket.

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Newton’s Third Law of Motion

The horse pulls the cart and the cart pulls the horse in response as per Newton third law. So the big question is, “Don’t the two forces cancel each other? How does the cart accelerate?”