In a ballistics test, a 28-g bullet pierces a sand bag that is 30cm  thick. If the initial bullet velocity was 55 m/s and it emerged from the sandbag moving at 18m/s, what was the magnitude of the friction force (assuming it to be constant and the only force present) that the bullet experienced while it traveled through the bag?

Q: A bullet is accelerated down the barrel of a gun by hot gases produced in the combustion of gun…

A: Force is defined as the product of mass and acceleration. Acceleration is defined as the rate of…

Q: A 1060 kg artillery shell is fire from the battleship. While it is in the barrel of the gun, it…

A: Given mass of artillery shell = 1060 kg  acceleration of artillery shell =  2.1x104 m/s2 we have to…

Q: A box of mass 11.6 kg is slid along the floor. The initial speed of the box is 1.8 m/s and it comes…

A: According to question--- Given value--- mass m = 11.6 kg. initial speed = 1.8 m/sec . final speed =…

Q: An electron is a subatomic particle (m = 9.11 x 10*31 kg) that is subject to electric forces. An…

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Q: n the velocity Av, in meters per second, of the particle between t = 0 and t = 1.3 s.

A:

Q: You have been called to testify as an expert witness in a trial involving a head-on collision. Car A…

A: Car A has a weight m1=1515 lb and is travelling with a velocity say v1 towards east. Car B has a…

Q: In a performance test, each of two cars takes 8.7 s to accelerate from rest to 27 m/s. Car A has a…

A:

Q: When a 0.058 kg baseball is hit by a bat, it accelerates to a speed of 45 m/s coming from rest. The…

A:

Q: A railroad car which has a mass 9216 kg is constrained to move along a horizontal track under the…

A: Mass of railroad car =9216 kg Frictional force = Ff= 1/200 x mg weight of railroad car = mg S= Area…

Q: The high-speed winds around a tornado can drive projectiles into trees, building walls, and even…

A: Given:  m = 0.13 g = 0.13 x 10-3 kg u = 220 m/s  v = 0 m/s  d = 15 mm = 0.015 m

Q: A particle of mass 4 kg is undergoing one-dimensional motion. It is subject to a constant force of…

A:

Q: he air exerts a forward force of 10 N on the propeller of a 0.40 kg model airplane. If the plane…

A: To determine,the magnitude of the resistive force(FR )exerted by the air on the airplane.given,Force…

Q: In a study conducted by an Acadia Athletic Therapy researcher, the football team was equipped for an…

A:

Q: A mysterious rocket-propelled object of mass 42.0 kg is initially at rest in the middle of the…

A: Given Data: Mass (m) = 42.0 kg.Magnitude of force (F(t)) = (56.0 N/s) t-(16.8 N/s2) t2.Time (t) =…

Q: Two forces F, = (55.76î – 12.93ĵ) N and F, = (27.41î - 72.94ĵ)N are exerted on a particle. The…

A: The mass of the particle is m=10.14 kg The force acting on the particles, F→1=55.76i^-12.93j^ N The…

Q: A dated box of dates, of mass 7.1 kg, is sent sliding up a frictionless ramp at an angle of θ to the…

A:

Q: A duck has a mass of 2.10 kg. As the duck paddles, a force of 0.140 N acts on it in a direction due…

A: Mass of duck is Force on duck due to paddle is due east.Force due to water is  in a direction of…

Q: A car of mass 1.2  103 kg is traveling east at a speed of 24 m/s along a horizontal roadway. When…

A: Given: Mass of car is M=1.2×103kg The initial speed of the car is Vinitial=24m/s brakes are applied…

Q: A student pushes a physics textbook of mass 1.19 kg across a table with a horizontal force of 5.66…

A: The objective of this question is to find the speed of the textbook after a certain period of time.…

Q: A shot putter threw a 7.26-kg steel ball a horizontal distance of 17.5 meters. The shot was released…

A: horizontal distance = X = 17.5 m height = h = 2.07 m angle = 450

Q: An object of mass 0.85 kg is initially at rest. When a force acts on it for 2.9 ms it acquires a…

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Q: A 148-Newton horizontal force is exerted upon a 3-kg box to move it across a level surface at a…

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Q: A particle with a mass of 10 kg is moving at a velocity of (3t^2 + 4t)j m/s. What would be the…

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Q: A block of mass 13 kg is given an initial speed of 12 m/s, after which it slides across a horizontal…

A: initial speed = 12 m/s d = 18 m mass = 13 kg

Q: The three blocks shown are identical. Blocks B and C are at rest when block B is hit by block A,…

A: The given situation is depicted in the following figure. According to the question, Before…

Q: A 1060 kg artillery shell is fired from a battleship. While it is in the barrel of the gun, it…

A: Given data:  Mass (m) = 1060 kg Acceleration (a) = 2.1 × 104 m/s2

Q: An electron is a subatomic particle (m = 9.11 x 10-31 kg) that is subject to electric forces. An…

A:

Q: A ball of mass 2 kilograms is loaded into a spring gun which is pointed vertically upward. At t = 0…

A: The given force (F) acts on the given ball of mass (m) for the duration (T = 1 s) and imparts an…

Q: In a performance test, each of two cars takes 8.6 s to accelerate from rest to 26 m/s. Car A has a…

A: From kinematics equation:

Q: The velocity of an object of mass m= 5.00 kg is giving by v(t) = (3.0m/s3)t2+ (2.00 m/s2)t.  The…

A:

Q: A student pushes a physics textbook of mass 1.15 kg across a table with a horizontal force of 5.48…

A: The objective of this question is to find the speed of the textbook after 2.3 seconds. We can use…

Q: The high-speed winds around a tornado can drive projectiles into trees, building walls, and even…

A: The decrease in kinetic energy of the toothpick is equal to work done by the toothpick in overcoming…

Q: At a certain mining operation, 2400 kg of gravel falls onto a conveyor belt every minute. If the…

A: Force exerted by the gravel on the belt F=ddtmv=mdvdt+vdmdt=vdmdt             dvdt=0

Q: The high-speed winds around a tornado can drive projectiles into trees, building walls, and even…

A: We have to determine the force of branch on the toothpick We are aware that the toothpick is being…

Q: A person catches a ball with a mass of 145 g dropped from a height of 60.0 m above his glove. His…

A: Given:-  The mass of the person is m = 145 g = 0.145 kg  The height of the ball above his glove h =…

Q: While rollerblading through your neighborhood, you suddenly lose control and begin coasting down a…

A:

Q: A force F of magnitude 665 N lies in the line of action AB = 3i - 1j + 1.6k. What is the magnitude…

A:

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: