Questions 8-11 refer to the block on a flat surface shown below. A force is applied to the block as shown. With a force up to 1.5 N, the block does not move. A force of 1.5 N is enough to just make the block begin to move. After the block starts moving, it is pulled so that it moves with a constant velocity. 8. How does the force needed to keep the block moving with a constant velcity compare to 1.5 N? Explain your answer.

Q: 2. A lion and a tiger pull Dorothy on a sled on level ground. Given: Fion = 800 N, Friger = 650 N,…

A:

Q: Based on our study of Physics this year, answer the following questions and show work where…

A:

Q: 8. The driver of a car steps on the gas, and the car accelerates with acceleration a. When writing…

A: Option 1 The normal force is always acting normal to the object. Which is wrong statement. Option 2…

Q: 2. A 1.0 kilogram box, initially at rest, starts from a height of 0.60 meters, slides down a…

A:

Q: L00-kg block with an initial velocity of 5.00 m/s down the rack

A:

Q: Two blocks are connected by a light string that passes over a frictionless tcy as in the figure…

A:

Q: 1) A 3.15-kg block is acted on by a 24.0-N force that acts at 37.0° below the horizontal, as shown…

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: 8. A 10-kg block is set moving with an initial speed of 6 m/s on a rough horizontal surface. If the…

A:

Q: worker is pushing a heavy box along a surface. The box has 839 J of kinetic energy and a constant…

A:

Q: In the figure, a 3.5 kg block slides along a track from one level to a higher level after passing…

A:

Q: A child with mass m= 65kg is playing on a swing which has a length ofℓ= 3.3m. The rope can withstand…

A:

Q: *A child on a sled has been given a push so that he is moving up a hill. The hill is covered with…

A: Given: mass of child m1=22.7 kgmass of sled m2=3.18 kginitial velocity u = 3.83 m/sangle of…

Q: The 25-kg package has a speed of 1.5 m/s when it is delivered to the smooth ramp. After sliding down…

A: We will use conservation of energy and assume zero friction

Q: more potential energy will the rocket have when it reaches the top where its velocity is zero?…

A:

Q: 3. A worker must slide a wooden crate across a wooden floor. The worker walks up to the crate…

A: From Newton’s second law of motion, Here, Fa is the applied force and Ff is the force of friction,…

Q: The friction force that a horizontal surface exerts on a 60-kg object is 22 N. If the initial speed…

A:

Q: A wooden block each is placed on a wooden table and a wooden ramp, as shown. The blocks are…

A:

Q: -0 = r h In the figure above, a block slides along a track from one level to a higher level after…

A:

Q: T3 6.) If two different forces can accelerate the same block from rest to the same final speed, then…

A: The equation for the average power is given by, Pavg=Fcosθvavg Here, F is the magnitude of the…

Q: At the playground, Logan slides down each of the frictionless slides shown. At the top, he is given…

A:

Q: A 2.6 kg block is attached to a horizontal rope that exerts a variable force Fx = (20 - 5x) N, where…

A: The equation of motion is…

Q: 4. A 1000-N force is applied onto a block with a mass of 150-kg as shown below. The block starts…

A: Apploed force (F) = 1000 N d = 5 m θ = 30oμk = 0.15mass (m) = 150 kg

Q: If an object has kinetic energy, then it also must have ⒸA. force B. acceleration O C.speed O D.…

A: An object has kinetic energy which  denotes the kinetic energy of the object and it is given as…

Q: A constant applied force Fp of 15.0 N pushes. box with a a distance m= 7.00 Kg across X = 15.0 m…

A:

Q: The roller coaster ride starts from rest at point A. Assume friction is negligible. Rank the…

A:

Q: |2. A child slides down frictionless playground slides of equal height, starting from rest at the…

A:

Q: From the diagram below, what is the speed of the block when it reaches point A at the lowest point…

A: Given data: The mass of the block, m=2.0 kg. The initial speed of the block, vi=5.0 m/s. The…

Q: The attatched graph is a force over distance graph for a pop-up spring toy. Use the graph to answer…

A: (a) Since the potential energy of the pop up toy is converted into kinetic energy at the maximum…

Q: m = 19000 kg vo = 64 m/s x = 3 meters h = 47 meters Hk = 0.62 0 = 33.1 degrees L = 10.8 meters What…

A: The total work done is 0.00 J

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.