A small dog jumps straight up into the air to catch a Frisbee (mass 143 g) at the peak of its jump. If the frisbee is moving with a speed of 12.1 m/s when the dog catches it, and the dog and frisbee move off together at 0.74 m/s after the catch, what is the mass (in kg) of the dog?

Q: A billiard ball of mass 0.28 kg hits a second, identical ball at a speed of 7.2 m/s and comes to…

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Q: A boy of mass 48.5 kg is initially on a skateboard of mass 2.00 kg, moving at a speed of 10.1 m/s.…

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Q: Two asteroids collide and stick together. The first asteroid has mass of 1.38x104 kg and is…

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Q: A volleyball with a mass of 0.272 kg approaches a player horizontally with a speed of 17.0 m/s. The…

A: According to the impulse momentum theorem J = P(2) - P(1) where J is the Impulse, P(2) is the Final…

Q: An astronaut finds herself in a predicament in which she has become untethered from her shuttle. She…

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Q: A 0.010 - kg bullet is fired with velocity of 400 m/s into a pendulum bob has a mass of 0.990 kg.…

A: mass of the  bullet m1 = 0.010 kgmass of the pendulum bob m2 =0.990 kgvelocity of the bullet, v =…

Q: A rubber ball with a mass of 0.170 kg is dropped from rest. From what height (in m) was the ball…

A: Given Data:- Mass of the ball is m=0.170 kg. Momentum of the ball just before it lands the ground is…

Q: A ball of mass 3 kg is travelling to the right at 4m/s when it strikes a second ball of mass 10kg…

A: Mass of the first ball is m1 = 3 kg Initial speed of the first ball is u1 = 4 m/s Final speed of the…

Q: A rubber ball with a mass of 0.190 kg is dropped from rest. From what height (in m) was the ball…

A: The momentum of the ball is, p=0.76 kgm/s The ball's mass is, m=0.19 kg The initial velocity of the…

Q: A block of mass m = 5.6 kg, moving on a frictionless surface with a velocity of vi=6.5m/s to the…

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Q: A 10 g bullet is fired into a 2 kg ballistic pendulum as shown in the figure. The bullet remains in…

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Q: A projectile of mass 2.0 kg is fired in the air at an angle of 45.0° to the horizon at a speed of…

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Q: Cart A, with a mass of 0.20 kg, travels on a horizontal air track at 3.0 m/s and hits cart B, which…

A: Given :     Mass of cart A , mA = 0.20 kg     Mass of cart B , mB = 0.40 kg     Initial  velocity of…

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 diagram of the collision between a moving cue ball and an initially stationary cight ball on a…

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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: In assembling a train from several railroad cars, two of the cars, with masses 2.0 x 104 kg and 4.0…

A: The mass of the lighter car,   The mass of the heavier car,   The initial speed of the lighter…

Q: A block of mass m = 5.6 kg, moving on a frictionless surface with a velocity of vi=6.5m/s to the…

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Q: A car of mass 850 kg moves with a speed of 32 m/s and collides head on with a truck of mass 1300 kg…

A: in this question  we use conservation law of momentum.

Q: During a circus act, a performer thrills the crowd by catching a cannon ball shot at him. The cannon…

A: (a) Apply principle of conservation of momentum m1v1=m1+m2v Rearrange in terms of recoiling speed…

Q: A car of mass 1200 kg, travelling horizontally at 30 m/s, hits a stationary ball of mass 0.8 kg in…

A: We have a car of mass m1=1200 kg moving with velocity u1=30 m/s elastically colliding with a ball of…

Q: A 47 g tennis ball is served at 45 m/s. If the ball started from rest, what impulse was applied to…

A: Given data:  Mass (m) = 47 g = 0.047 kg Final velocity (Vf) = 45 m/s Initial velocity (Vi) = 0 m/s…

Q: A fireworks rocket moving at a speed of 45.5 m/s suddenly breaks into two pieces of equal mass. If…

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Q: A 328 kg car moving at 19.1 m/s hits from behind another car moving at 13.0 m/s in the same…

A: Answer:- (A) 14.0 m/s Given  Mass of first car(m1) = 328 kg   Velocity of first car before Collision…

Q: Consider an elastic collision between two balls. Find the magnitudes and directions of both…

A: Solution:   Given Values, Ball 1: mass (m1)= 1kg ; V1= 1 m/s, V2= 0.3 m/s  Ball 2: mass(m2)= 3kg ;…

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: 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 2.0 kg cart moves forward at 5.0 m/s, when it is struck from behind by a 0.50 kg cart moving at 15…

A: We will solve the above question using the conservation of momentum.

Q: A 1,500-kg car is traveling due east at 20 m/s when it undergoes a perfectly inelastic collision…

A: mass of car (m) = 1500 kg mass of truck (m') = 3000 kg Initial velocity of car (u) = 20 m/s due east…

Q: A cricket ball of 200 g travelling horizontally with a speed of 50 m/s hits a wall and coming back…

A: change in momentum ∆p=m∆v

Q: In tae-kwon-do, a hand is slammed down onto a target at a speed of 13.2 m/s and comes to a stop…

A: (a) Calculate the magnitude of the impulse. J = m*(v1 -v2)    = 0.654(13.2 -0)    = 8.63 N.s

Q: Block A has a mass of 3.0 kg and a velocity of 13.0 m/s, catching up a second block B that has a…

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Q: Two grocery carts collide, a full one with a mass of 35kg moving East at 2m/s and an empty one with…

A: Given: Mass of full cart (M1) is 35 kg. Mass of empty cart (M2) is 10 kg. Initial velocity of full…

Q: A bullet of a mass 5.00g is fired horizontally into a stationary wood block of a mass 0.450kg. After…

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Q: A pitcher throws a 0.145 kg baseball with a speed of 38.0 m/s. The ball is hit straight back at the…

A: Given data :               Mass of the baseball, m = 0.145 kg               Initial speed of the…

Q: A ball moving horizontally to the left at 50 m/s hits a post and rebounds horizontally to the right…

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Q: A 10 g bullet is fired into a 2 kg ballistic pendulum as shown in the figure. The bullet remains in…

A: For an object of mass m and speed v kept at a height h above the reference level, The momentum p of…

Q: A 4900 kg open train car is rolling on frictionless rails at 18.6 m/s when it starts pouring rain. A…

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Q: Two objects with masses m1 = 2kg and m2 = 4kg collide and stick together as shown in the figure. The…

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Q: A 2.0 kg block of wood slides on a frictionless horizontal floor at 3.0 m / S. A 40 g bullet flies…

A: Given: The mass of the block is 2 kg. The speed of the block is 3 m/s in the right direction. The…

Q: A 0.625 kg basketball is thrown across the court at a speed of 5.6 m/s.What speed must a 0.490 kg…

A: Apply conservation of momentum   Initial Momentum = final momentum

Q: An astronaut finds herself in a predicament in which she has become untethered from her shuttle. She…

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Q: A white ball of mass 1.0 kg moving at 10.0 m/s collides with a 1.2 kg red ball initially at rest.…

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Q: A mass of 2.71 kg is traveling in the +x direction with velocity 5.60 m/s. It collides with a…

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Q: A pitcher throws a baseball of mass 0.500 kg towards home plate with an initial velocity of 35m/s.…

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Q: A boy, of mass 45 kg, is sliding on ice at a constant 3m/s. When he collides with another boy of…

A: Given, Mass of boy m1 = 45 Kg Initial velocity u1 = 3 m/s Mass of boy m2 = 50 Kg Initial velocity u2…