A 49.0-kg boy, riding a 2.40-kg skateboard at a velocity of 5.60 m/s across a level sidewalk, jumps forward to leap over a wall. Just after leaving contact with the board, the boy's velocity relative to the sidewalk is 6.00 m/s, 8.00° above the horizontal. Ignore any friction between the skateboard and the sidewalk. What is the skateboard's velocity relative to the sidewalk at this instant? Be sure to include the correct algebraic sign with your answer.

Q: Two football players collide head-on in midair while trying to catch a thrown football and cling…

A:

Q: A diagram of the collision between a moving cue ball and an initially stationary eight ball on a…

A:

Q: A 11 kg body is moving through space in the positive direction of an x axis with a speed of 310 m/s…

A:

Q: A 23 kg body is moving through space in the positive direction of an x axis with a speed of 130 m/s…

A: Given data: The total mass of the body is, m= 23 kg The velocity of the body m is, v= 130 m/s along…

Q: A 1200-kg car moving at 15.6 m/s suddenly collides with a stationary car of mass 1500 kg. If the two…

A: mass of first car (m) = 1200 kg initial velocity of first car (u) = 15.6 msmass of second car (M) =…

Q: Block 1, with mass m1 and speed 3.9 m/s, slides along an x axis on a frictionless floor and then…

A:

Q: A 75-kg fisherman in a 125-kg boat throws a package of mass m = 15 kg horizontally toward the right…

A: Apply conservation of momentum to boat fisherman-package system,

Q: **45. ssm Starting with an initial speed of 5.00 m/s at a height of 0.300 m, a 1.50-kg ball swings…

A: The mass of the first ball,   The mass of the second ball,   The initial speed of the first ball,…

Q: Two asteroids with equal masses collide in the asteroid belt between Mars and Jupiter. Initially,…

A: (a) Apply the momentum conservation equation along the x-axis. Here, m, u and v represent the…

Q: A bullet of mass 20 g, traveling at 350 m/s , strikes a steel plate at an angle of 30° with the…

A: calculate the impulse along the parallel to the plane of plate Iparallel= m(Vfcosθ – Vicosθ) =…

Q: A 27 kg body is moving through space in the positive direction of an x axis with a speed of 200 m/s…

A: The law of conservation of linear momentum states that for an isolated system, the linear momentum…

Q: A car with mass mc = 1382 kg is traveling west through an intersection at a magnitude of velocity of…

A: According to the law of conservation of momentum, the momentum in all the direction is conserved.…

Q: B SSM Batman (mass = 91 kg) jumps straight down from a bridge into a boat (mass = 510 kg) in which…

A:

Q: A 0.0200-kg bullet is shot horizontally and collides with a 3.65-kg block of wood. The bullet embeds…

A: We can solve the above question using conservation of momentum and work-energy theorem.   Note:- as…

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 object (A) of mass ma=17.0 kg is moving due east with a speed vA= 8.15 m/s, while the object…

A: Mass of object A = 17 kg Mass of object B = 29.5 kg Initial velocity of A = 8.15 m/s due EAST…

Q: 107.5-kg rugby player is initially running at 8.5 m/s in the positive direction, but collides…

A:

Q: At the local radio controlled (RC) airfield, a 2.4 kg RC plane strikes a 1.2 kg aerial drone that is…

A:

Q: A 0.507-kg ball, initially moving with a speed of 3.49 m/s, bounces off a wall and then moves with a…

A: Initial speed of ball, Vo= 3.49 m/s Final speed of ball, V = half of Vo Time of contact of ball with…

Q: A 10.0g marble slides to the left with a velocity of magnitude 0.400 m/s on the frictionless,…

A: In an elastic collision between two objects, the linear momentum and the kinetic energy of the…

Q: Two blocks with mR =2 kg and mg =4 kg are moving with vg 2.5 m/s and vg =3 m/s in positive z and y…

A: Given: masses of the blocks are mR = 2 kg & mB = 4 kg velocities of the blocks are vR = 2.5 i…

Q: A 1200-kg car moving at 15.6 m/s suddenly collides with a stationary car of mass 1500 kg. If the two…

A:

Q: 8 3 L5 R %24 Part A A 0.149 kg glider is moving to the right on a frictionless, horizontal air track…

A:

Q: A 0.150-kg glider A is moving to the right on a horizontal, frictionless air track with a speed of…

A:

Q: Two gliders with mA = 0.50 kg, mB = 0.40 kg, collide elastically on a frictionless surface. Glider A…

A: Given:- mA= 0.5 kg mB= 0.4 kg uA= 4 m/s = initial velocity of A UB= -7 m/s = intial velocity of B vA…

Q: During a Mutant League Football game, K.T. Slayer, a 71.6 kg linebacker, is running toward the…

A:

Q: A 5.0 g bullet traveling horizontally with a velocity of magnitude 400 m/s is fired into a wooden…

A: The linear momentum of a system remains constant (in magnitude and direction) if the external forces…

Q: A 6.0 kg car is sitting on a floating 10 kg container in a lake and initially at rest 1.2 m away…

A: Given data: Mass of cat is m=6 kg. Mass of container is M=10 kg. The distance between park and cat…

Q: A 105-kg rugby player is initially running at 7.5 m/s in the positive direction, but collides…

A:

Q: A 7.0 g bullet is fired into a 1.5 kg block and becomes embedded in the block. After the collision,…

A: Let vA be defined as the speed of the bullet prior to striking the block. Let the velocity of the…

Q: 5.10 kg squid initially at rest ejects 0.250 kg of fluid with a velocity of 10.8 m/s. What is the…

A: Find more . The mass of squid is, m1 = 5.10kg  .The mass of fluid is, m2 = 0.250 kg . The velocity…

Q: A car with mass mc = 1216 kg is traveling west through an intersection at a magnitude of velocity of…

A:

Q: A block of mass m = 5.4 kg, moving to the right on frictionless surface with a speed Vi=9.2 m/s…

A: Given:-              Block of mass m = 5.4 kg                      Speed = 9.2 m/s

Q: Block 1, with mass m1 and speed 3.8 m/s, slides along an x axis on a frictionless floor and then…

A: The masses are m1 and 0.34m1 The initial speed of m1 is u1=3.8 m/s The initial speed of m2 is u2=0…

Q: A block of mass m = 8.40 kg, moving on a horizontal frictionless surface with a speed 4.20 m/s,…

A: Scenario - Two blocks, one at rest and another in motion collide and after collision one of the…

Q: A wood block of mass mw = 200 g is projected from the ground at a speed vo= 35 m/s and at an angle…

A: Given: The mass of wooden block mw = 200 g. Projectile speed of wooden block vo = 35 m/s. Angle of…

Q: Block 1, with mass m1 and speed 4.0 m/s, slides along an x axis on a frictionless floor and then…

A:

Q: A 3.3 kg block of wood sits on a frictionless table. A 3.0 g bullet, fired horizontally at a speed…

A:

Q: A bullet weighing 3.00 g is fired horizontally into a 1.50 kg wooden block resting on a horizontal…

A:

Q: Question 6.1a: A toy car having mass m = 1.05 kg collides inelastically with a toy train of mass M =…

A: In an inelastic collision, the momentum is conserved and not the energy.(a) Using the conservation…

Q: loaded railroad car of mass 6000 kg is rolling to the right at 2.0 m/s when it collides and couples…

A:

Q: A block of mass m = 8.40 kg, moving on a horizontal frictionless surface with a speed 4.20 m/s,…

A:

Q: wo gliders with mA = 0.50 kg, mB = 0.40 kg, collide elastically on a frictionless surface. Glider A…

A: