ed of 9.0 m/s. He is met at the goal line by a 130 kg linebacker traveling at 7 m/s. The running back is traveling at a 40◦ from the goal line, and the linebacker is running at a 30◦ , as shown in the figure. The li

Q: Identical twins, each with mass 49.0 kg, are on ice skates and at rest on a frozen lake, which may…

A:

Q: A small block of mass m, = 0.855 kg is released from rest at the top of a curved wedge of mass m, =…

A: Answer            (a) V2  = 0.3886 m/s             (b) h = 0.8956 m Solution

Q: An incoming tennis ball (mass .060 kg) has a speed of 14m/s. The player hits the ball with a racquet…

A:

Q: A 45.0 kg girl is standing on a 153 kg plank. The plank, originally at rest, is free to slide on a…

A:

Q: nched into deep space, where gravity is negligible. In the first second, it ejects 1/160 of its mass…

A: GivenA rocket is launched into deep spaceIn the first second, it ejects 1/160 of its massa=15.5 m/s2

Q: A baseball approaches home plate at a speed of 46.0 m/s, moving horizontally just before being hit…

A: According to the Newton’s second law,

Q: Blocks A (mass 5.00 kg) and B (mass 11.00 kg, to the right of A) move on a frictionless, horizontal…

A:

Q: You are holding a basketball and standing at rest on top of a skateboard. If you throw the…

A: Initially, as both the person and the basketball were at rest, so the initial momentum of the system…

Q: A 46.0-kg girl is standing on a 147-kg plank. Both originally at rest on a frozen lake that…

A: Mass of the plank mp=147 kg Mass of the girl mg=46 kg Velocity of the girl relative to the plank…

Q: In the interest of safety for the space personnel on board, the acceleration of a craft leaving the…

A: acceleration (a) = 7 g g = 9.8 ms2Mass of rocket = 7.6×104 kg exhaust velocity = 1.88×103 ms

Q: A 45.0 kg girl is standing on a 142 kg plank. The plank, originally at rest, is free to slide on a…

A:

Q: Identical twins, each with mass 64.0 kg, are on ice skates and at rest on a frozen lake, which may…

A:

Q: You have two identical cars, both of mass 1,542 kg. The first one is moving to the left with an…

A: Given data:  Two identical cars m1 = m2 = 1542 kg Initial velocity of car 1 (u1) = -11.9 m/s Initial…

Q: A baseball approaches home plate at a speed of 48.0 m/s, moving horizontally just before being hit…

A:

Q: During a spacewalk, a 118 kg astronaut (including her spacesuit) is at rest and holding a 3.5 kg…

A: Consider the mass of astronaut be m1, the mass of the wrench be m2, the initial speed of the…

Q: Bonita (mass of 60 kg) is stuck, motionless, on a frictionless frozen lake. The only thing she has…

A: The mass of the Bonita is 60 kg.The mass of the iPhone is 175 g or 0.175 kg.The final speed of the…

Q: A 65.0 kg  diver, dives horizontally off a 375 kg raft initially at rest. If the diver's speed…

A:

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: An 19.0-kg fish moving horizontally to the right at 3.11 m/s swallows a 2.2 kg fish that is swimming…

A: The speed of large fish immediately after its lunch is  V = 2.02 m/s

Q: A baseball approaches home plate at a speed of 48.0 m/s, moving horizontally just before being hit…

A: Given Data mass of the ball m = 145 glet i^ be the unit vector in the direction of + x directionand…

Q: A 90.0 kg fullback running 36.9° north of east with a speed of 5.00 m/s is tackled and held onto by…

A:

Q: 3. A 4.80 kg fish is swimming at 1.00 m/s to the right. He swallows a 1.50 kg fish swimming toward…

A: From conservation of energy, the initial momentum is equal to the final momentum.

Q: A 0.150g baseball is thrown horizontally with a velocity of 28.0 m/s in the negative x-direction.…

A: The average force on the object is given by Where  = Change in linear momentum,  = time interval

Q: A girl launches a toy rocket from the ground. The engine experiences an average thrust of 5.26 N.…

A: The average thrust Mass of the engineMass of the fuel Time Mass of the rocket body

Q: Kyle, a 90.0 kg football player, leaps straight up into the air (with no horizontal velocity) to…

A:

Q: A dog, with a mass of 155 kg, jumps horizontally at a speed of 6.0 m / s in a boat that is floating…

A: Given that, Mass of a dog, m1 = 155 kg Speed of the dog, u1 = 6 m/s Initially, the boat was at rest…

Q: A small block of mass m1 = 0.770 kg is released from rest at the top of a curved wedge of mass…

A:

Q: A 0.8 kg block of wood is sliding across a floor at 2 m/s when a half-gram nail from a nail gun…

A:

Q: A 10-m-long glider with a mass of 680 kg (including the passengers) is gliding horizontally through…

A: Given,

Q: A baseball approaches home plate at a speed of 42.0 m/s, moving horizontally just before being hit…

A: We are given that, Initial velocity of the baseball, u=42 m/s Final velocity of the baseball, v=50…

Q: A 45.0 kg girl is standing on a 137 kg plank. The plank, originally at rest, is free to slide on a…

A: Given data The mass of the girl is: mg = 45 kg. The mass of the plank is mp = 137 kg. The initial…