2. A person with a mass of 65 kg travels through a snow using snow board. He is skiing for 20s and a constant friction force of 25 N acts on him. What is his change in velocity?

Q: A 841.2 kg car initially moving at 17.39 m/s starts to slow down and comes to a complete stop in…

A: Just replace the values and its done

Q: How much force is needed to make a rocket move in constant velocity in a frictionless outer space?…

A: If a rocket moves with constant velocity, its acceleration will be zero.

Q: The average speed of a nitrogen molecule in air is about 686 m/s, and its mass is 4.85 x10-26 kg. If…

A:

Q: Suppose a person weighing 140.0 pounds is stranded in the middle of a frozen pond. In order to move…

A:

Q: 2. A force of 500 N acts for a time interval of 0.001 second on an object that was initially at…

A:

Q: Question 5 Calculate the acceleration of the block, in m/s². This is the information: M = 4 kg Hs =…

A:

Q: A car of mass 250 kg, is accelerated from rest by a net force of 400 N for 20 s.  After this, the…

A: Given: Mass (m) = 250 Kg  time (t1 ) = 20 s  Force (F1) = 400 N  Force (F2) = 100 N

Q: A2.4 kg flower pot is resting on a shelf 10.0 meters above the floor. If the flower pot falls to the…

A:

Q: Question 25 If base unit for P in kg m^-3 Q in kg m s^-3 R in kg^2 m^-3 s^-1 What quantity does PQ/R…

A:

Q: Two students stand face-to-face, then push each other away. One student has a mass of 90.0kg; the…

A: Given, m1= 90kg m2= 60kg Initial velocities of both objects are 0. Final velocity of m1 is v1. Final…

Q: 42. A helicopter is hovering in the air. Its rotor blades propel 2500 kg of air vertically downwards…

A: Given : m = 2500 kg dt = 1 second  vo = 0 because the air initially at rest v = 15 m s-1

Q: The block of mass m = 2 kg is released from the rest on the incline. If 0 = 15°, what is the…

A: mass of block (m) = 2 kg θ = 15 degree t = 2 seconds μs = 0.3μk = 0.2

Q: When a 0.058 kg baseball is hit by a bat, it accelerates to a speed of 45 m/s coming from rest. The…

A:

Q: object has an initial velocity of 5 m/s East then speeds up to 25 m/s East in 4 seconds. What is the…

A: Given u = 5 m/s v = 25 m/s t = 4 sec

Q: Superman and Batman are on a sheet of iče, preparing for battle. Superman has a mass of 94 kg, and…

A: Given:- mass of the superman = 94 kg  mass of the badman = 117 kg   The force applied by superman on…

Q: Which of the following steps would most likely result in lowering the force of a collision? a…

A: By Newton's 2nd law, Force is given by, F=Change in momentumTime=∆pt=m(v-u)t

Q: A force acts on a 2-kg mass and gives it an acceleration of 3 m/s2. What acceleration is produced by…

A:

Q: 3) A 7-kg rock and a 20-kg rock are launched horizontally from a platform with initial velocity of v…

A: The masses of the rock: 7 kg and 20 kg The initial velocity with which the two rocks are launched…

Q: alm/s/s) 25.0 20.0 15.0 10.0 5.0 1.0 2.0 3.0 4.0 5.0 t(s)

A: We know that the area under the acceleration time graph is change in velocity.

Q: A 1100 kg car traveling at 27 m/s starts to decelerate and comes to a complete stop in 578.0 m. What…

A:

Q: A compact car has a maximum acceleration of 4.0 m/s2 when it carries only the driver and has a total…

A:

Q: A 0.05 kg superball hits a wall moving at 32 m/s upon impact. The wall exerts an opposing force of…

A: Mass of superball (m) = 0.05 kg speed of impact (v) = 32 msForce (F) = -1400 N time (t) = 0.002…

Q: A glider strikes a 0.075-kg block so that its velocity changes by +35 m/s in 0.070 s. With what…

A:

Q: Mr. Blain van and car have broken down. Because he is so muscular, he decides to pull them to the…

A: Given:- The pulling force is  F = 7000 N  His porche is 500 kg and his van is 1500 kg Find:- What…

Q: Someone holds the block on the table at rest. Once he releases the block, the block may accelerate…

A:

Q: 3- While a stone with a mass of 3 kg slides to the right at a speed of 5.5 m/s on a horizontal…

A: mass of stone = 3 kg initial speed of stone towards right = 5.5 m/sinitial momentum towards right =…

Q: 68. A rocket of mass 4.5 X 10 kg is accelerating straight up. Its engines produce an upward thrust…

A: According to the Newton's second law , the vertical net acceleration of the rocket is calculated by…

Q: 1.) A rocket engine applies a force of 1200 N to a 50 kg rocket, determine the rocket's…

A: Ans:- Image-1

Q: A 50 N force is applied horizontally to a 10 kg block which is initially at rest (v. = 0) what is…

A: Given: The force applied is 50 N. The mass of the block is 10 kg. The initial velocity is 0 m/s. The…

Q: A 57.92 kg block initially moving at 2.64 m/s comes to rest after 3.51 s due to friction. What is…

A: Given: The mass of the object is 57.92 kg. The initial speed is 2.64 m/s. The time interval is 3.51…

Q: runner of mass 51.1 kg starts from rest and accelerates with a constant acceleration of 0.8 m/s2…

A: Acceleration untill reach v  velocity = a"= .8m/s² final Velocity "v"= 5.8m/s. Total distance S"=…

Q: A rocket is launched upward. The height of the rocket was 82.9 ft at the end of the thrust and had a…

A: Apply the third kinematic equation at the end of the thrust and substitute the required values.

Q: 8. Carol, who weighs 60 kg, is driving her car at a speed of 25 m/s. She sees a dog crossing the…

A:

Q: A runner of mass 51.1 kg starts from rest and accelerates with a constant acceleration of 0.8 m/s2…

A:

Q: Q2 / The velocity of a particle of mass m changes with the displacement. According to the equation =…

A: velocity of the body is given by: v=hx it is known that, v=dxdt i.e. rate of change in displacement…

Q: Keith Lee, who is billed at 154 kg, ejects Adam Cole, billed at 95 kg, from frame. Assuming Cole…

A: Given data The mass of Keith lee is given as mk = 154 kg. The mass of adam cole is given as ma = 95…

Q: 66. A 1200 kg car travels at 25 m/s. The brakes are applied and the car slows down at –8.0 m/s². How…

A:

Q: 59. 59. A block of mass 4m can move without friction on a horizontal table. This block is attached…

A:

Q: An object with mass m initially at rest is acted on by a force F= k1i + k2t3j, where K1 and  K2 are…

A: Mass =m  Force = F→=k1i^+k2t3j^ According to Newton's second law of motion: F = ma F=dvdt

Q: 49. A baseball catcher is performing a stunt for a television commercial. He will catch a baseball…

A: Assume that the potential at the glove is zero and the the initial speed of the ball when it is…

Q: 1. A 2-kg brick is moving to the right at a speed of 6m/s. How large a force Fis needed to stop the…

A: Given Data: The mass of the brick is: m=2 kg The speed of the brick is: u=6 m/s The time duration of…

Q: 13. The figure shows a block of mass Mon an inclined plane at an angle 0 with respect to the…

A: Let M denote the mass of the block, g denote the gravitational acceleration, θ denote the angle of…

Q: 33. A large rocket has a mass of 2.00 x 10° kg at takeoff, and its engines produce a thrust of 3.50…

A:

Q: An object has an initial velocity of 5 m/s East then speeds up to 25 m/s East in 4 seconds. What is…

A:

Q: A force of 8 N acts on a 3-kg object for 15 seconds. What is the change in velocity?  a. 0.025 m/s…

A: Given data:  Force (F) = 8 N Mass (m) = 3 kg Time interval (Δt) = 15 s Required: The change in…

Q: 3. One newton is equivalent to: kg - m/s d) 1 kg / m a) 1 b) 1 kg - m/ s? e) 1 kg - m c) 1 kg - m² /…

A: Given Force acting on an object = 1 N We have to convert it into MKS system and choose the correct…

Q: 20kg

A:

Q: 2. A block with mass m; = 4.00 kg and a ball with mass m2 =6.00 first second of motion if both…

A: Using FBD and equation from Laws of motion we solve as follows

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: