A worker pushes a 35.0-kg package on a horizontal roller-belt conveyor until it reaches a certain speed. The package then coasts on the horizontal conveyor, all the while slowing down, until it comes to a complete stop after moving 1.20 m. While the package is coasting on the conveyor, the opposing friction force averages 6.00 N. Use the WET to find the speed of the package after the worker pushes it and just as it begins to coast.

Q: Starting from rest, a 99-kg firefighter slides down a fire pole. The average frictional force…

A:

Q: A 62.0-kg skier is moving at 6.90 m/s on a frictionless, horizontal, snow-covered plateau when she…

A: Write the third kinematic equation and substitute the corresponding values to calculate the speed of…

Q: A 5 kg block is at rest on a horizontal floor, and then you pull it with a cord that exerts a…

A:

Q: Problem 69. A block of mass m starts from rest at the top of an incline. The block starts at a…

A:

Q: You are designing a delivery ramp for crates containing exercise equipment. The crates of weight…

A: You are designing a delivery ramp for crates containing exercise equipment. The crates of weight…

Q: A 49.60-kg skier with an initial speed of vi-34.00 m/s coasts up a H=17.25-m-high rise with a slope…

A:

Q: In the figure, a 4.4 kg block slides along a track from one level to a higher level after passing…

A:

Q: A 17-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 30 N.…

A: Given data: mass m = 17 kg force F = 30 N speed v = 1.9 m/s displacement d = 8.6 m

Q: 10) Starting from rest, a 97.0 kg firefighter slides down a fire pole. The average frictional force…

A: The given values are, m=97.0 kgFk=800 Nv=3.60 m/s

Q: Based on page 30 from the lecture note, match the answers with questions. the initial kinetic energy…

A: Given that: The file cabinet has a mass of 100 kg  you are pushing with a 700 N force in the…

Q: A 2.31x103 kilogram car starts from rest and coasts down from the top of a 4.15 meter long driveway…

A:

Q: A 2.33-kg block initially at rest at the top of a 3.37-m incline with a slope of 44.5° begins to…

A:

Q: A block initially at rest is pulled to the right along a frictionless, horizontal surface by a…

A: Given data The magnitude of the force is F=14 N The dispalcement of the block is d=7.0 m The speed…

Q: A 80 kg bobsled is pushed along a horizontal surface by two people.  After the bobsled is pushed a…

A: mass, m = 80 kg  distance, s = 5 m  initial speed, u =0 m/s  final speed, v = 8 m/s

Q: A 2.1 ✕ 103-kg car starts from rest at the top of a 5.8-m-long driveway that is inclined at 25° with…

A: Given, Car start from rest. Mass of car(m)= 2.1× 103-kg  Length of driveway (d)= 5.8 m  Angle of…

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

A: Solution:

Q: In a circus performance, a monkey is strapped to a sled and both are given an initial speed of 3.0…

A: ma=mgsinθ+μkmgcosθa=gsinθ+μkcosθa=9.8 m/s2sin24°+0.20cos24°=5.7766 m/s2

Q: A child on a sled with a total mass of 45.0 kg slides down an icy hillside with negligible friction.…

A: The vertical height of the hill is about 0.46 m. Here, we use conservation of energy and solve for…

Q: A 2.1 x 103-kg car starts from rest at the top of a 5.5-m-long driveway that is inclined at 15° with…

A:

Q: A 25.0-kg crate is being pushed across a floor. The net horizontal force on the crate is 59.0N.…

A:

Q: A 19-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 21 N.…

A: The mass of the sled: m = 19 kg. The horizontal force: Fx = 21 N. The final speed of the sled: v =…

Q: A boy pulls a bag of baseball bats across a ball field toward theparking lot. The bag of bats has a…

A: The acceleration is,

Q: Starting from rest, a 28.4 kg child rides a 9.75 kg sled down a frictionless ski slope. At the…

A:

Q: A 45.0 kg object is pushed up an incline as shown with a horizontal force of 300.0 N. The object is…

A:

Q: A 3 kg block travels along a horizontal surface with a coefficient of kinetic friction of 0.28 at a…

A: Given: A 3 kg block travels along a horizontal surface with a coefficient of kinetic friction of…

Q: A 2.1 ✕ 103-kg car starts from rest at the top of a 5.3-m-long driveway that is inclined at 18° with…

A: The speed of the car at the bottom of the driveway is 11.91 m/s.Explanation:

Q: Starting from rest, a 92-kg firefighter slides down a fire pole. The average frictional force…

A:

Q: A skier starts going down a rocky hill that is inclined 30 degrees from the horizontal. It is 2 km…

A:

Q: Calculate the final speed vs of a 2.00-kg object that is pushed 2.00 kg for 34.0 m by a 30.0-N force…

A:

Q: At the start of a race, a four-man bobsled team pushes their sled as fast as they can along a 50 m…

A: Mass, m = 325 kgFriction force, F = 60 NPull force, P = 964.079 N at 15°Displacement, d = 50 m

Q: Whether or not an object (such as a plate, glass, or bone) breaks upon impact depends on the average…

A: An object falling freely accelerates to speed v after falling h height which is given by:

Newton's Second Law

Newton’s laws of motion describe the relationship between the motion of an object and forces acting on it. Newton’s law of motion has two types as follows: