Two identical arrows, one with twice the speed of the other,are fired into a bale of hay. Assuming the hay exerts aconstant “frictional” force on the arrows, the faster arrowwill penetrate how much farther than the slower arrow?Explain.

Q: A toy gun uses a spring to project a 5.0-g soft rubber sphere horizontally. The spring constant is…

A: Given data : Projectile's mass, Spring constant, Barrel's length, Frictional force constant,…

Q: A 2.86-kg particle is subject to a net force that varies with position as shown in the figure. The…

A: Given, Mass of the particle =2.86 kg It is given that the particle starts from rest at x =0 A figure…

Q: In a circus performance, a monkey is strapped to a sled and both are given an initial speed of 5.0…

A: Given Data: The initial speed of a monkey and sled is, u=5.0 m/s The angle of an inclined track is,…

Q: A skier weighing 90 kg starts from rest dowm a hill inclined at 17. He skis 100 m Bown the hill and…

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Q: A 4.6-g bullet leaves the muzzle of a rifle with a speed of 328 m/s. What force (assumed constant)…

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Q: An 8 kg block initially at rest is pulled to the right for 3 m with a force of 12 N over a surface.…

A:

Q: The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a…

A: The mass of the lighter box = 8 kg.The mass of the heavier box = 35 kg.The distance between point A…

Q: The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a…

A: According to conservation of energy -  Potential energy at A = Kinetic energy at B Therefore,…

Q: A cart is set rolling across a level table, at the same speed on every trial. If it runs into a…

A:

Q: The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a…

A:

Q: The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a…

A: As the box slides from point A to point B the potential energy is converted into kinetic energy. The…

Q: A 6.8-kg toboggan is kicked on a frozen pond, such that it acquires a speed of 1.9 m/s. The…

A: We are allowed to answer only the first question. For solutions to other questions, please re-post…

Q: 3. A 3.2 kg box on an incline plane is push from the top and travels down with the initial speed of…

A: Given Mass m = 3.2 kg Initial velocity u = 9.8 m/s Length of inclined = 5 m Angle of inclination =…

Q: A bottle rocket is shot straight up in the air with a speed 30 m/s . If the air resistance is…

A: In ideal case , there is no air resistance acting on any moving object . But, in real situation ,…

Q: A 7.0-kg rock is subject to a variable force given by the equation F(x) = 6.0 N - (2.0 N/m)x + (6.0…

A: Given :- m = 7 kg  u= 0 F(x) = 6.0 N - (2.0 N/m)x + (6.0 N/m2)x2

Q: a 4.6-g bullet leaves the muzzle of a rifle with a speed of 332 m/s. What force (assumed constant)…

A: Write the kinematic relation between initial and final velocity

Q: A 60.0 kg skier with an initial speed of 13.0 m/s coasts up a 2.50 m high rise as shown in the…

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Q: A car's bumper is designed to withstand a 6.48 km/h (1.8-m/s) collision with an immovable object…

A:

Q: The 70-kg boy slides down the smooth water slide. If he starts from rest at A, determine his speed…

A:

Q: JABBI Two objects are connected by a light string passing over a light, frictionless pulley. The…

A: Given, mass of the object,  m1 = 5.00 kgm2 = 3.00 kg initial height above the ground, h = 4.0 m

Q: Two baseballs are fired into a pile of hay. If one has twice the speed of the other, how much…

A: Consider the mass of both balls to be the same. The haystack applies the same force on both the…

Q: The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a…

A: m1 = 10 kg m2 = 39 kg vA = 0 m/s hA = 4 m hB = 1 m

Q: A constant force of 8.0 N is exerted for 4.0 s on a 16-kg object initially at rest By how much will…

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Q: Two blocks are released from the top of a building. One falls straight down while the other slides…

A: Here Two blocks released from the top of a building One block fall straight and another block move…

Q: Imagine two masses sitting on a horizontal table. There is negligible friction between the masses…

A: Given :      mass, m1 = 4.6 kg      mass, m2 = 13.0 kg      Final velocity of m1,v1 = 6.0 m/s

Q: The sport of curling is quite popular in Canada. A curler slides a 19.1-kg stone so that it strikes…

A: Stone 1 of mass m=19.1 kg is moving with a velocity v=6.8 m/s (say in +y-direction) before hitting…

Q: A 60.0 kg skier with an initial speed of 14.0 m/s coasts up a 2.50 m high rise as shown in the…

A:

Q: A 60.0 kg skier with an initial speed of 10.0 m/s coasts up a 2.50 m high rise as shown in the…

A:

Q: A car's bumper is designed to withstand a 3.60 km/h (1.0 m/s) collision with an immovable object…

A: Let the initial speed of the car be u, the final speed of the car be v, the mass of the car be m,…

Q: A car weighing 1.2 tons. Its engine generates a force of 2000 Newtons. Find the distance traveled by…

A: Given : m = 1.2 tons = (1.2)(1000) = 1200 kg F = 2000 N v = 27 m/s

Q: In the winter sport of curling, two teams alternate sliding 20 kg stones on an icy surface in an…

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Q: A car's bumper is designed to withstand a 4.32 km/h (1.2 m/s) collision with an immovable object…

A:

Q: A car's bumper is designed to withstand a 5.76 km/h (1.6 m/s) collision with an immovable object…

A:

Q: A toboggan reaches the foot of a hill at a speed of 4 m/s and coasts on level snow for 15 m before…

A: The kinetic energy relation is given in terms of velocity, and mass as Ek=12mv2

Q: A 60.0 kg skier with an initial speed of 16.5 m/s coasts up a 2.50 m high rise as shown in the…

A:

Q: A 50 kg person jumping from a height of 1 m is traveling at 4.5 m/sec just prior to landing. Suppose…

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Q: The sport of curling is quite popular in Canada. A curler slides a 19.1-kg stone so that it strikes…

A:

Q: A 2.0-kg block was released from rest at point A. It then moves through point B until it finally…

A:

Q: 65.0 kg skier with an initial speed of 14.0 m/s coasts up a 2.50 m high rise as shown in Figure…

A: Weight of the skier,

Q: In a circus performance, a monkey is strapped to a sled and both are given an initial speed of 5.14…

A:

Q: The drawing shows two boxes resting on frictionless ramps. One box is relatively light and sits on a…

A: Given data The mass of the first block is m1 = 13 kg The mass of the second block is m2 = 37 kg The…

Q: A car's bumper is designed to withstand a 6.48 km/h (1.8 m/s) collision with an immovable object…

A:

Q: A 56.32-kg skier with an initial speed of vi=44.29 m/s coasts up a H=15.4-m-high rise as shown in…

A:

Static and Kinetic Friction

Kinetic friction comes into existence when there are moving surfaces means in other words we can say that the force which comes into existing between moving surfaces is known as kinetic friction.