A gardener pushes a 11 kg lawnmower whose handle is tilted up 37∘above horizontal. The lawnmower's coefficient of rolling friction is 0.20. How much power does the gardener have to supply to push the lawnmower at a constant speed of 1.4 m/s?

Q: A truck pushes a pile of dirt horizontally on a frictionless road with a net force of 20.5 N for…

A: Given data:  Force (F) = 20.5 N Displacement (d) = 23.6 m Required: The increase in kinetic energy

Q: A 20.0 kg rock is sliding on a rough, horizontal surface at 8.00 m/s and eventually stops due to…

A: Given that,Mass (M) = 20 (Kg)Initial velocity (u) =8 (m/sec)Final velocity (v) = 0…

Q: Multiple-Concept Example 13 presents useful background for this problem. The cheetah is one of the…

A:

Q: 11. A block of mass mi 2.40 kg is connected to a second block of mass m2 = 1.80 kg, as shown in the…

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Q: A 2.5 kg mass is initially at rest on a horizontal surface. An applied force acts in the +x…

A: Given, Mass 'm' = 2.5 kg displacement 'd' = 1.5 m  final speed 'v' = 4 m /s at distance of 150 m…

Q: A 4.23 kg bundle starts up a 22.4° incline with 103 J of kinetic energy. How far will it slide up…

A: The expression from work energy theorem,

Q: Two tugboats pull a disabled tanker with each tug exerting a force of 1.80 x 106 N, one with 14°…

A:

Q: A fully-loaded, slow-moving freight elevator has a cab with a total mass of 1700 kg, which is…

A:

Q: Consider humans generating electricity by pedaling a device similar to a stationary bicycle.…

A: The number of people in the group,

Q: NASA claims that their latest space rocket of 200 thousand slugs can accelerate from rest to a speed…

A: Let v denotes the speed, t denotes the time taken, and a denotes the acceleration. Therefore, the…

Q: A 1.00 kg ball is sitting at the bottom of a hill. Feeling playful, you decide to push it as hard as…

A:

Q: A golfer hit a 40.80 gram golf ball from the fairway giving it an initial velocity of 35.4 m/s.  It…

A:

Q: Same set-up for the conservation of energy was performed. The 5-g marble covered a horizontal…

A:

Q: A car with a mass of 900.0 kg climbs a 20.00° incline at a steady speed of 60.00 km/hr. If the total…

A: The steady speed of a car is, v=60 km/hr=16.67 m/s The total resistive or dissipative force acting…

Q: Your goal is to lose weight by working out on a rowing machine. Each time you pull the rowing bar…

A:

Q: A 64.0 kg man, standing on a frictionless walkalator inclined at =33.0° below the horizontal, holds…

A:

Q: Aminah and Ahmad get into an elevator which has a mass of 1500 kg. Both Aminah and Ahmad weight 50…

A:

Q: A force F = 5.Oî + 16.5 ↑ - 3.7Rk N is acting on a body causes a displacement d = -49.2 - 30.9k m.…

A: Given: The force is F→=5.0i^+16.5j^-3.7k^ N. The displacement is d→=-49.2j^-30.9k^ m.

Q: A person throws a 0.150 kg ball with a speed of 40.4 m/s at an angle of 28.00 to the horizontal.…

A:

Q: 7.51 * A system of two paint Figure P7.51 buckets connected by a light- weight rope is released from…

A: Apply the conservation of energy equation. Here, hb is used for the heavy bucket, lb is used for…

Q: Construct Your Own Problem - Consider humans generating electricity by pedaling a device similar to…

A:

Q: Two tugboats pull a disabled supertanker. Each tug exerts a constant force of 2.20×106 N, one at an…

A: We will use the concept of work done

Q: An advertisement shows a 1239 kg1239 kg car slowly pulling at constant speed a large passenger…

A: The car having a mass of 1239 kg is pulling the Boeing 707 aircraft, with a mass of 62.5 tons, at a…

Q: A 980 kg car travels a distance of 6.00 m uphill along a road that makes an angle of 30.0∘ with the…

A: Mass of the car m = 980 kg.Distance is given as s = 6 m.Angle is given as Accelration of the car

Q: During your winter vacation, you enter a “dogsled” race across a frictionless frozen lake, in which…

A: Given that                The mass of the sled (m) = 50Kg                Force (F) = 100N…

Q: A 64.0 kg man, standing on a frictionless walkalator inclined at θ=33.0° below the horizontal, holds…

A: Mass of the man M=64 kg, mass of the grocery cart m=12.8 kg, inclination of the walkalator below the…

Q: Grains from a hopper falls at a rate of 22.1 kg/s vertically onto a conveyor belt that is moving…

A: Given: dmdt = 22.1 kg/sv =4.75 m/s

Q: Jonathan accelerates away from a stop sign. His eight-year-old daughter sits in the passenger seat.…

A: The Force is directly proportional to rate of change of momentum.

Q: elevator car has a mass of 1600 kg and is carrying sengers having a combined mass of 200 kg. A…

A: Calculate the total weight of the system. W=We+WpW=meg+mpgW=(1600 kg)(9.8 m/s2)+(200 kg)(9.8…

Q: cinetic friction

A: Given: Mass of bundle is 3.32 Kg Kinetic energy is 109 J Kinetic friction coefficient between bundle…

Q: A 5.60 kg dynamics cart is accelerated from rest at 2.80 m/s2[W] on a horizontal surface over a…

A:

Q: A gardener pushes a 16 kg lawnmower whose handle is tilted up 37∘ above horizontal. The lawnmower's…

A: Given information:

Q: A conveyor belt of length 15.0 m is at 15⁰ with respect to the ground or horizontal. It can hold…

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Q: A fisherman reels in 14.0 m of line while landing a fish, using a constant forward pull of 20.0 N.…

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Q: You are giving your pet a ride in a wagon. You pull on the wagon handle with a force of 50.0 N…

A: Given  Force acting is ,F = 50.0 N  Angle to horizontal ,40°  Time taken t = 5.0 minutes  Distance…

Q: How long will it take an 850-kg car with a useful power output of 40.0 hp (1 hp = 746 W) to reach a…

A: 1) mass = 850 kg Power = 40 hp 1 hp = 746 W initial velocity (u) = 0 m/sfinal velocity (v) = 15m/s

Q: While riding on an elevator, a person has twoforces acting on him, a normal force and a gravity…

A: To determine,The magnitude of the normal force.Is the elevator speeding up or slowing…

Q: A mechanic pushes a 3770 kg car from rest to a speed of v, doing 4845 J of work in the process. Find…

A: The car's mass is, m=3770 kg The initial sped of the car is, u=0 m/s The work done in the process…

Q: A 2.5 kg mass is initially at rest on a horizontal surface. An applied force acts in the +x…

A: According to work energy theorem,

Q: A gardener pushes a 12 kg lawnmower whose handle is tilted up 37deg above horizontal. The…

A: We are given mass of lawn mover. We are given the angle of push wrt horizontal. We apply 2nd law of…

Q: golfer hit a 40.92 gram golf ball from the fairway giving it an initial velocity of 36.5 m/s.  It…

A:

Q: You are giving your pet a ride in a wagon.  You pull on the wagon handle with a force of 50.0 N…

A: We know that work done is defined as the product of force time displacement, and power is defined as…

Q: A very light string going on a massless and frictionless pulley, is connecting two blocks. The two…

A: Given, Mass of the block on the table m1 = 2 kg Mass of the block suspended m2 = 1 kg Displacement…