A speed boat requires 80kW to move at a constant speed of 15 m/s. What is the resistive force of the water at this speed?

Q: To an accelerating bus ignoring the air resistance. the work done on and applied force and friction…

A: a bus is accelerating in the absence of friction Let the applied force = F Let the frictional force…

Q: The only force acting on a 2.0-kg body moving along the x axis is given by Fx = 2x where force is…

A: Given : equation of force, Fx = 2x  mass of the body, m = 2.0 kg  Velocity at x = 0, vo = 3 m/s to…

Q: What is the maximum velocity at which a 25 W motor can lift an 8.5 kg object upward

A: Given that:- P=25 Wm=8.5 kgg=9.8 m/s2V=?   Since, P=mgV

Q: roller coaster have a velocity of 9.5 m/s goes thru a loop where R = 6.7 meters. /hat normal force…

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Q: Mr. M is driving his truck, which has a mass of 2200kg, at a speed of 125km/h on the 401. He notices…

A: Mass of the truck is m = 2200 kg Initial speed of the truck is u = 125 km/h Tapping distance is S =…

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 otter slides down a hill as shown. The coefficient of friction between the otter and the…

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Q: A basebait player exerts a force of 80N on a ball for a distance of 0.3m as he throws it. If the…

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Q: An all-star cheerleading team throws a 40 kg flyer cheerleader into the air from an initial position…

A: We know that time to reach maximum height of a projectile is given as  T=ug Where u is initial speed…

Q: A jet plane holds 1000 gals of fuel. Fuel weighs 6.00 lbs/gal. The engine consumes 1200 lbs/hr. The…

A: Given Volume of the fuel V = 1000 gal Density of the fuel d = 6.00 lbs/gal Rate of Burning r = 1200…

Q: When starting a foot race, a 68.6 kg sprinter exerts an average force of 704 N backward on the…

A: Given: The mass of sprinter (m) = 68.6 kg. Force exerted F = 704 N. Time (t) = 0.813 s.

Q: A truck with a mass of 1677kg travels at a velocity of 30m/s befor beginning to break. The friction…

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Q: A 0. 150kg glider slides on an ice pond with negligible friction with speed of 0.8 m/s. It has a…

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Q: A 3.2-tonne vehicle accelerates to 140 miles per hour in 50 seconds. Calculate the force exerted by…

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Q: Hulk is helping Natasha pull a 84 - kg box of weapons up a38 inclined plane with a velocity of 7.3…

A: in the question it is given that ,mass of the crate , m=84 kgθ =38oinitial velocity , u =7.3…

Q: This may seem like an easy question for a physics type to answer: With what force does a rock that…

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Q: When you parachute, you hit the ground with the same speed as free falling from a height of 4.5m,…

A: From equation of motion we know that v2= u2+ 2as . During freefall condition using initial velocity…

Q: On October 9, 1992, a 27-pound meteorite struck a carin Peekskill, NY, creating a dent about 22 cm…

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Q: You cut the tennis ball off of the cord, and you then replace the tennis ball with a 400 gram mass.…

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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 force that acts on an object is said to be conservative if ...

A: The force required to move a particle from some initial position to the final position without…

Q: A 4.2 -g bullet leaves the muzzle of a rifle with a speed of 340m / s . What force (assumed…

A: Write the given values with the suitable variables. m=4.2 g=0.0042 kgu=0 m/sv=340 m/sd=0.83 m Here,…

Q: You kick a 0.425 kg soccer ball, taking it from rest to a speed of 14 m/s in 0.10s. What is the…

A: Given data The mass of the soccer ball is m = 0.425 kg The ball's initial speed is u = 0 m/s The…

Q: Calculate the force needed to bring a 450-kg canoe to rest from a speed of 10.8 km/h in a distance…

A: Given problem is based on the laws of kinematics. As we know that the kinematical equations are very…

Q: A golfer putts a 46 g ball with a speed of 3.0 m/s. Friction exerts a 0.020 N retarding force on the…

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Q: A 1200 kg car and a 2400 kg car are lifted to the same height at a constant speed in a auto service…

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Q: A 5.0-g bullet leaves the muzzle of a rifle with a speed of320 m/s. What force (assumed constant) is…

A: Given data:Mass of the bullet, m = 5 g = 5 x 10-3 kg.Initial velocity of the bullet, u = 0 m/sFinal…

Q: A golf ball of mass 0.045 kg is hit off the tee at a speed of 34 m/s . The golf club was in contact…

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Q: A rocket sled accelerates to 41 m/s. When the rocket engine stops, the sled skids along its rails.…

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Q: Pick out the only vector quantity   A) pressure B) impulse C) gravitational potential D)…

A: Any quantity is called a vector quantity, if it has magnitude as well as direction.

Q: A 4.2-g bullet leaves the muzzle of a rifle with a speed of 322 m/s. What force (assumed constant)…

A: The mass of the bullet is 4.2g, and speed is 322m/s.Write the expression for work done.

Q: A 0.005 kg coin is dropped off of a 10 m tall bridge.  Assuming there is no friction or air…

A: Given values -  Mass (m) = 0.005 kgDisplacement (s) = - 10 mAcceleration (a) = - 9.8 ms2 Note:…

Q: A 40.2 box initially at 4.19m/s on a rough surface is brought to rest by an 18.7N force due to…

A: Using Work-Energy theorem, W=∆KE-Ffrd=12mv2-u2d=mu2-v22Ffr

Q: A 15 kg box is pulled with an applied force of 40 N with a rope at an angle of 40 degrees above the…

A: Given data: Applied Force (F) = 40 N Angle (θ) = 40° above the horizontal Displacement (d) = 10.0 m…

Q: A man in a sled, with a total mass of 125 kg, slide down a grassy hill and reaches a speed of 8 m/s…

A: Given: Mass of man and sled , m = 125 kg Initial speed, vi = 8 m/s Final speed, vf = 0 Force exerted…

Q: What is the maximum speed of a 1000 kg roller coaster car at the bottom of a 97 m hill?

A: Given: mass of the roller coaster m = 1000Kg            height of the hill h = 97m Find: Maximum…

Q: A baseball player exerts a force of 80N on a ball for a distance of 0.7m as he throws it. If the…

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Q: In a wind tunnel test, the lift force measured by the dynamometer is of 40kg at 10m/s. what will be…

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Q: A speed boat requires 61 kW to move at a constant speed of 27 m/s. What is the resistive force in…

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Q: A 1,300kg car is traveling at a velocity of 30.0m/s when the driver slams on the brakes. If a…

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Q: I am driving my 10000.kg car @ 25m/s and apply a force of 3000.N with my brakes for 30. seconds.…

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Q: A 0.6 ton motor is moving on a le way at a speed of 108 km/hr. How retarding force (in Newton) is…

A: Given : m = 0.6 ton = 600 kg vo = 108 km/hr = 30 m/s s = 0.007 km = 7 m