A speed boat requires 61 kW to move at a constant speed of 28 m/s. What is the resistive force in Newtons of the water at this speed

Q: If a 2.4 kg object is initially at rest on a frictionless, horizontal surface and subjected to a…

A: The equation of motion we use to solve this is v2-u2 = 2as, where v = the final velocity u = the…

Q: Suppose it takes a force of 4,200N to accelerate a particular car from rest to its cruising speed in…

A:

Q: A driver in a 1000 kg car traveling at 20 m/s slams on the breaks and skids to a stop. If the…

A: Given:Velocity of the car = 20 m/sCoefficient of friction = 0.8

Q: The parachute on a race car of weight 8,815 N opens at the end of a quarter-mile run when the car is…

A: Given: The weight of the parachute is 8815 N. The initial speed is 33 m/s. The final speed is 0 m/s…

Q: A horizontal force of 12 newtons is applied to a 4.0 kg box that slides on a horizontal surface. The…

A: Data Given ,  Horizontal force ( F ) = 12 N Mass of the box ( m ) = 4 kg Box starts from rest ,…

Q: Mike pushes a box with a mass of 6.35 kg giving it an initial velocity of 2.35 m/s. The box comes to…

A: Given, Mass of box , m=6.35 kg Initial velocity , Vi=2.35 m/s Final velocity , Vf=0 m/s Distance ,…

Q: Mike pushes a box with a mass of 6.97 kg giving it an initial velocity of 3.63 m/s. The box comes to…

A:

Q: A high jumper with a body weight of 820 N exerts an average vertical force of 1640 N down on the…

A: Given  Force applied by jumper on floor F=1640 N  Time t=0.75s Weight w=820N

Q: About 80 gram of blood is pumped from the heart during each heartbeat. The blood starts…

A: Given m = 80g       Vi = 0m/s , Vf = 0.6m/s , t = 0.17s

Q: Mike pushes a box with a mass of 5.87 kg giving it an initial velocity of 2.18 m/s. The box comes to…

A:

Q: It has been determined that a force over 200 N can injure the hand. What is the shortest period of…

A: The objective of this question is to find the shortest period of time it will take to stop a 2 kg…

Q: A semi-trailer is coasting downhill along a mountain highway when its brakes fail. The driver pulls…

A: The initial speed of the truck can be calculated using given steps:Given:

Q: A 145-Newton horizontal force is exerted upon a 4-kg box to move it across a level surface at a…

A:

Q: A rope exerts a constant horizontal force of 280 N to pull a 50kg crate across the floor. the…

A:

Q: A 16-kg sled is being pulled along the horizontal snow-covered ground by a horizontal force of 24 N.…

A:

Q: The kinetic friction force between a 8.1-kg object and a horizontal surface is 72 N. If the initial…

A:

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 student pushes a physics textbook of mass 1.11 kg across a table with a horizontal force of 5.81…

A:

Q: 1) part one: An archer puts a 0.31 kg arrow to the bowstring. An average force of 193.1 N is exerted…

A:

Q: A 65-kg ice skater coasts with no effort for 75 m until she stops. If the coefficient of kinetic…

A: Acceleration of the skater

Q: The 2-kg block is subjected to a force F having a constant direction and a magnitude 100 N When s=4…

A: mass, m = 2 kg  F = 100 N  s = 4 m , u = 8 m/s  s = 12 m  coefficient of friction = 0.25  Angle, A =…

Q: Corey, whose mass is 95 kg, stands on a bathroom scale in an elevator. The scale reads 880 N for the…

A:

Q: A 325-g model boat facing east floats on a pond. The wind in its sail provides a force of 1.55 N…

A:

Q: A 148-Newton horizontal force is exerted upon a 3-kg box to move it across a level surface at a…

A:

Q: If a 2.1 kg object is initially at rest on a frictionless, horizontal surface and subjected to a  14…

A:

Q: 8) A 31.0 kW electric motor drives a vehicle at an average velocity of 9.20 m/s. Assuming a constant…

A: Given: Electric power, P=31.0 kW Average velocity, v=9.20 m/s   To determine the magnitude of…

Q: A drag racer crosses the finish line doing202 mi>h and promptly deploys her drag chute (the small…

A: First , convert all the values in meter/second. 1 mi/hr=0.44 m/sec so, initial velocity(u)=88.88…

Q: The friction force that a horizontal surface exerts on a 62 kg object is 23 N. If the initial speed…

A: Given data The mass of the object is m = 62 kg. The force applied to the object is F = 23 N. The…

Q: A net (unbalanced) external force of 100.0 N acts on an object of mass 20.0 kg whose initial speed…

A:

Q: Istap. A constant force F = 5.0 [N] is applied at a certain angle from the horizontal on a 0.50 [kg]…

A: Write the given values with the suitable variables. F=5 Nm=0.50 kgvi=3 m/svf=3 m/ss=0.8 m Here, F,…

Q: A student pushes a physics textbook of mass 1.15 kg across a table with a horizontal force of 5.48…

A: The objective of this question is to find the speed of the textbook after 2.3 seconds. We can use…

Q: as it moves along the positive x axis has an x component Fx = -4x N, where x is in meters. The…

A:

Q: How fast will the fish be moving after swimming 1 m?

A: Thrust produced by tail motion F=0.65 N, mass of fish m=1.7 Kg and initial velocity of fish u=0.65…

Q: A 128 lb person steps into an elevator at the ground floor. The elevator accelerates upward at 5.0…

A:

Q: n is traveling at a speed of 50 m/s at an angle of 10o. But the driver noticed that the bridge 300-m…

A: Given:-  The mass of the train is m = 20 Mg  the train is traveling with the speed of v = 50 m/s…

Q: A hockey puck with mass 0.163 kg is pushed across the ice with a constant force of 0.37 N. The…

A: Given data: Mass of puck is, m=0.163 kg. Force on puck is, F=0.37 N. Coefficient of friction between…

Q: Istahp. A constant force F= 5.0 [N] is applied at a certain angle from the horizontal on a 0.50 [kg]…

A:

Q: A driver in a 1000.0 kg car traveling at 28 m/s slams on the brakes and skids to a stop. If the…

A:

Q: magnitude of the force that stops the baseball

A: Given: Before fracturing, forehead withstand force is F1=6 kN Cheekbone withstand force is F2=1.3 kN…

Q: The man slides the 180-lb crate across the floor by pulling with a constant force of 30 lb. If the…

A: The third equation of  motion is  v2 = u2 + 2 a s where, u is the initial velocity, v is the final…

Q: A box with a mass of 5.0 kg on a frictionless horizontal surface is pulled horizontally with a force…

A: Given : m = 5 kg F = 20 N vo = 0 because box is initially at rest t = 3 s

Q: A 325-g model boat facing east floats on a pond. The wind in its sail provides a force of 1.45 N…

A: