A 25.0-gram bullet enters a 2.35-kg watermelon and embeds itself in the melon. The melon is immediately set into motion with a speed of 3.82 m/s. The bullet remains lodged inside the melon. What was the entry speed of the bullet? (CAUTION: Be careful of the units on mass.)

Q: A student applies a force on a puck equal to the one shown in the figure. If the mass of the puck is…

A: Given,

Q: A 8.2-kg projectile is fired with a speed of + 260 m/s to the right. With what velocity does the…

A:

Q: Taking the density of air to be 1.29 kg/m3, what is the magnitude of the linear momentum of a cubic…

A: Mass of 1 m3 of air =1.29kg  a) linear momentum =mv=1.29×57×5/18 m/s =20.42kgm/s

Q: A 400 g ball is dropped from a height of 95 cm. Calculate the magnitude of its momentum as it makes…

A: Given that- Ball mass(m)=400g =400×10-3 kg Height(h)=95cm=0.95m To determined that - Calculate the…

Q: What exhaust speed is required to accelerate a rocket in deep space from 800 m/s to 1000 m/s in 5.0…

A:

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Q: A 0.5 kg stationary ball is struck by a 25 kg mallet and leaves the collision at 22 m/s. If the ball…

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Q: A model rocket is constructed with a motor that can provide a total impulse of 25.0 N·s. The mass of…

A:

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A:

Q: Eight boxcars are moving at a speed of 0.2 m/s along a track when they collide with a single…

A:

Q: In the figure below, projectile particle 1 is an alpha particle and target particle 2 is an oxygen…

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Q: Taking the density of air to be 1.29 kg/m3, what is the magnitude of the linear momentum of a cubic…

A:

Q: A missile of mass 110 kg is fired from a plane of mass 5500 kg initially moving at a speed of 315 m…

A: Given:  mass of missile, m = 110 kg  mass of plane, M = 5500 kg  initial velocity of missile, v =…

Q: A cart of mass 2.00 x 102 kg moving at 2.50 m/s collides and couples with two coupled carts, each of…

A: Given data:  Mass of single cart (m1) = 2.00×102 kg Mass of two coupled carts(m2) = 2m1 = 4.00×102…

Q: A missile of mass 1.2×102 kg is fired from a plane of mass 5.5×103 kg initially moving at a speed of…

A:

Q: A 4.20-gram bullet moves at 120 m/s in a horizontal direction which was buried in a 75-gram block…

A: Given Mass of bullet = 4.2 g Initial velocity of bullet = 120 m/s Initial velocity of block = 0 m/s…

Q: A skater of mass 81.0 kg initially moves in a straight line at a speed of 5.10 m/s. The skater…

A:

Q: For a body moving in the x-direction. In which of the following force vs timediagrams is the impulse…

A: The body Force vs time graph is given for four different situations where the body is moving in the…

Q: A ball of mass 0.165 kg is dropped from rest from a height of 1.25 m. It rebounds from the floor to…

A:

Q: An object of mass 2.91 kg, moving with an initial velocity of 4.97 î m/s, collides with and sticks…

A: Given: The mass of first object is m1=2.91 kg. The mass of second object is m2=2.63 kg. The…

Q: A 24.5 kg sled moves in a horizontal direction with a position vs. time function x(t) = 0.25t3 –…

A:

Q: Two asteroids strike head-on: before the collision, asteroid (mA=8.0×10^12 kg) has velocity 3.3km/s…

A: Given:

Q: Taking the density of air to be 1.29 kg/m³, what is the magnitude of the linear momentum of a cubic…

A:

Q: An SUV with mass 1.80 x 103 kg is travelling eastbound at +15.0 m/s, while a compact car with mass…

A: M =1800 kg  m = 900 kg  U = 15 m/s  u = - 15 m/s

Q: A railway car of mass 1.37 x104kg, rolling at 20.0 km/h [N] collides with another railway car of…

A: Image-1

Q: An internal explosion breaks an object into two fragments. One fragment is 2.35 kg moving 30° north…

A: Mass of one fragment: m1=2.35 [kg] Velocity of fragment: v1=3.5 [m/s] Mass of other fragment:…

Q: If the box developed a speed of 5.140 m/s after impact, what is the speed of the projectile after…

A: Analyze the following figure. The projectile’s initial horizontal velocity can be determined as,…

Q: What is the recoil velocity of a 4.00 kg rifle which fires a 5.00 g bullet with a muzzle velocity of…

A: Mass of rifle: mrifle = 4.00 kg Mass of bullet: mbullet = 5.00 g = 5 x 10-3 Kg Final speed of…

Q: A rocket in deep space moving with velocity of 300 m/s has an initial mass of 5000 kg, of which 2000…

A: Given : uR=300m/s         (Initial velocity of rocket)            dmgdt=5 kg/s        (Rate of…

Q: A rubber ball with a mass of 0.160 kg is dropped from rest. From what height (in m) was the ball…

A: Given: The mass of the ball is m=0.160 kg. The momentum of the ball is P=0.700 kg·m/s. The initial…

Q: A 4.20-gram bullet moves at 120 m/s in a horizontal direction which was buried in a 75-gram block…

A:

Q: CI A rifle has a mass of 4.75 kg and it fires a bullet of mass 10.0 g at a muzzle speed of 845 m/s.…

A: Given data: Mass of rifle (m1) = 4.75 kg Mass if bullet (m2) = 10.0 g = 0.0100 kg Velocity of bullet…

Q: What is the acceleration of a 5000 kg rocket taking off from the Moon, where the acceleration  due…

A: Given data:  Mass of rocket (m) = 5000 kg Acceleration due to gravity (g) = 1.6 m/s2 Mass flow rate…

Q: A(n) 0.56 kg softball is pitched at a speed of12 m/s. The batter hits it back directly at thepitcher…

A:

Q: A 1,000-kg rocket carrying 25 kg of fuel and oxygen rises at a velocity of 305 m/s. If all the mass…

A: Answer:- Given Mass of rocket (M) = 1000 kg  Mass of fuel (m) = 25 kg  Fuel oxygen rises velocity…

Q: An experimental rocket sled weighs 5760 lb and is propelled by six rocket motors each with an…

A: The value of the time average R of the total aerodynamic and mechanical resistance is 513.59 lb

Q: 120 100 80 60 40 20 10 20 30 40 50 time /s

A: Given Data: Mass of the particle is m = 1.9 kg. Part (a) Impulse in force and time diagram is the…

Q: A rocket has an exhaust speed of 3.0 × 103 m/s, and produces 9.5 × 105 N of instantaneous thrust.…

A: Given data: Speed (v) = 3.0×103 m/s Force (F) = 9.5 × 105 N Required: Mass of fuel burn each second

Q: A little fish has mass 0.400 kg and is floating motionlessly in the water, minding its own business,…

A:

Q: A fireworks rocket moving at a speed of 36.3 m/s suddenly breaks into two pieces of equal mass. If…

A:

Q: A rocket with an initial mass of 1.56E6 kg is blasting-off. If the velocity of the expelled fuel is…

A: Given : Initial mass of rocket (mo) = 1.56E6 kg Initial velocity (vo) = 3.11E3 m/s Rate of change of…

Q: A(n) 0.42 kg softball is pitched at a speed of15 m/s. The batter hits it back directly at thepitcher…

A:

Q: Ball a with mass ma=42kg is thrown in the horizontal direction with a velocity of va=16 m/s, and…

A: Considering collision along x and y axes seprately. We have PAxi+PBxi=PAxf+PBxf PAyi+PByi=PAyf+PByf